| 401. | Biophilia hypothesis | Wikipedia audio article | 0 | |
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| 402. | Gametrak | Wikipedia audio article | 0 | |
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| 403. | Second Epistle to the Corinthians | Wikipedia audio article | 0 | |
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| 404. | Soup base | Wikipedia audio article | 0 | |
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| 405. | Lotka–Volterra equations | Wikipedia audio article | 0 | |
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| 406. | Ordu | Wikipedia audio article | 0 | |
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| 407. | National Basketball League (Bulgaria) | Wikipedia audio article | 0 | |
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| 408. | Kiribath | Wikipedia audio article | 0 | |
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| 409. | Embodied cognitive science | Wikipedia audio article | 0 | |
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| 410. | 1923 Great Kantō earthquake | Wikipedia audio article | 0 | |
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| 411. | Human ecology | Wikipedia audio article | 0 | Vlog |
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| 412. | Portland Company | Wikipedia audio article | 0 | |
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| 413. | Government of the United Kingdom | Wikipedia audio article | 0 | |
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| 414. | National Academy of Sciences, Republic of Korea | Wikipedia audio article | 0 | |
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| 415. | 2011 Bandy World Championship | Wikipedia audio article | 0 | |
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| 416. | Tofurkey | Wikipedia audio article | 0 | |
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| 417. | FLEX (satellite) | Wikipedia audio article | 0 | |
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| 418. | Center for Biofilm Engineering | Wikipedia audio article | 0 | Vlog |
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| 419. | Open water swimming at the 2015 World Aquatics Championships – Women's 5 km | Wikipedia audio ... | 0 | |
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| 420. | International Society for Science and Religion | Wikipedia audio article | 0 | |
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| 421. | Mars Exploration Program | Wikipedia audio article | 0 | |
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| 422. | Keningau Murut language | Wikipedia audio article | 0 | |
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| 423. | Isolated system | Wikipedia audio article | 0 | |
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| 424. | Cauayan, Isabela | Wikipedia audio article | 0 | |
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| 425. | Psychoanalytic theory | Wikipedia audio article | 0 | |
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| 426. | Statistical parameter | Wikipedia audio article | 0 | |
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| 427. | David Lowe (television and radio composer) | Wikipedia audio article | 0 | |
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| 428. | Internet in Grenada | Wikipedia audio article | 0 | |
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| 429. | Thomas Sankara | Wikipedia audio article | 0 | |
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| 430. | East Java | Wikipedia audio article | 0 | |
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| 431. | Battery-electric locomotive | Wikipedia audio article | 0 | |
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| 432. | French Fifth Republic | Wikipedia audio article | 0 | |
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| 433. | Global Oscillations Network Group | Wikipedia audio article | 0 | |
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| 434. | Voiced alveolar lateral click | Wikipedia audio article | 0 | |
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| 435. | Moambe chicken | Wikipedia audio article | 0 | |
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| 436. | Enlightened absolutist | Wikipedia audio article | 0 | |
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| 437. | Gatlinburg Space Needle | Wikipedia audio article | 0 | |
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| 438. | Green sauce | Wikipedia audio article | 0 | |
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| 439. | Rudolf Carnap | Wikipedia audio article | 0 | |
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| 440. | Old Sundanese script | Wikipedia audio article | 0 | |
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| 441. | Green Run, Virginia | Wikipedia audio article | 0 | |
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| 442. | Cognitive space | Wikipedia audio article | 0 | |
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| 443. | Peter Damian | Wikipedia audio article | 0 | |
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| 444. | Estonian Braille | Wikipedia audio article | 0 | |
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| 445. | Buddhism and psychology | Wikipedia audio article | Wikipedia audio article | 0 | Vlog |
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| 446. | Whisky sauce | Wikipedia audio article | 0 | |
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| 447. | Chicken foot (disambiguation) | Wikipedia audio article | 0 | |
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| 448. | Star Trek: New Worlds | Wikipedia audio article | 0 | | Star Trek: New Worlds
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| 449. | University principal | Wikipedia audio article | 0 | |
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| 450. | Keşkek | Wikipedia audio article | 0 | |
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| 451. | Ruislip Woods | Wikipedia audio article | 0 | |
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| 452. | New England Aquarium | Wikipedia audio article | 0 | |
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| 453. | Rossby wave | Wikipedia audio article | 0 | |
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| 454. | List of earthquakes in Georgia (country) | Wikipedia audio article | 0 | |
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| 455. | Triglyceride | Wikipedia audio article | 0 | |
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| 456. | Cycle World | Wikipedia audio article | 0 | |
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| 457. | Swimming at the 2017 World Aquatics Championships – Women's 400 metre individual medley | Wiki ... | 0 | |
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| 458. | Brown Company | Wikipedia audio article | 0 | |
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| 459. | Tucson International Airport | Wikipedia audio article | 0 | |
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| 460. | Butuanon people | Wikipedia audio article | 0 | |
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| 461. | Madrasa | Wikipedia audio article | 0 | |
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| 462. | Avgolemono | Wikipedia audio article | 0 | |
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| 463. | Referential transparency (computer science) | Wikipedia audio article | 0 | |
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| 464. | N'Djamena International Airport | Wikipedia audio article | 0 | |
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| 465. | Marine Sciences | Wikipedia audio article | 0 | |
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| 466. | Roscellinus | Wikipedia audio article | 0 | |
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| 467. | Bacolor, Pampanga | Wikipedia audio article | 0 | |
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| 468. | Alabama locations by per capita income | Wikipedia audio article | 0 | |
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| 469. | Tayammum | Wikipedia audio article | 0 | |
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| 470. | Peacemaking | Wikipedia audio article | 0 | |
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| 471. | West Africa Campaign (World War II) | Wikipedia audio article | 0 | |
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| 472. | Tychicus | Wikipedia audio article | 0 | |
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| 473. | Taipei | Wikipedia audio article | 0 | |
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| 474. | Kreatopita | Wikipedia audio article | 0 | |
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| 475. | Islamic holidays | Wikipedia audio article | 0 | |
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| 476. | Nationwide Mutual Insurance Company | Wikipedia audio article | 0 | |
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| 477. | Catherine of Siena | Wikipedia audio article | 0 | |
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| 478. | São Tomé and Príncipe | Wikipedia audio article | 0 | |
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| 479. | Occupational medicine | Wikipedia audio article | 0 | |
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| 480. | Chaat | Wikipedia audio article | 0 | |
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| 481. | List of forms of electricity named after scientists | Wikipedia audio article | 0 | |
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| 482. | 1964-1965 New York World's Fair | Wikipedia audio article | 0 | |
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| 483. | Comparative army officer ranks of the Americas | Wikipedia audio article | 0 | |
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| 484. | Orion (US rocket) | Wikipedia audio article | 0 | |
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| 485. | The Independent | Wikipedia audio article | 0 | |
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| 486. | Novella | Wikipedia audio article | 0 | |
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| 487. | World Wide Renewal Program | Wikipedia audio article | 0 | |
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| 488. | World Chess Championship 1894 | Wikipedia audio article | 0 | |
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| 489. | A Collection of above Three Hundred Receipts in Cookery, Physick and Surgery | Wikipedia audio a ... | 0 | |
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| 490. | Jet (lignite) | Wikipedia audio article | 0 | |
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| 491. | Time management (video game genre) | Wikipedia audio article | 0 | |
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| 492. | Kerr, Stuart and Company | Wikipedia audio article | 0 | |
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| 493. | Obatzda | Wikipedia audio article | 0 | |
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| 494. | Principle of uniformitarianism | Wikipedia audio article | 0 | |
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| 495. | Lift net | Wikipedia audio article | 0 | |
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| 496. | Canadian Military Engineers | Wikipedia audio article | 0 | |
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| 497. | Dinengdeng | Wikipedia audio article | 0 | |
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| 498. | Holly (automobile company) | Wikipedia audio article | 0 | |
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| 499. | United States Army enlisted rank insignia | Wikipedia audio article | 0 | |
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| 500. | Peter J. Stang | Wikipedia audio article | 0 | |
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