Problem: Given the question: Question: "Mental maps help birds to what?" Context: "The timing of migration seems to be controlled primarily by changes in day length. Migrating birds navigate using celestial cues from the sun and stars, the earth's magnetic field, and probably also mental maps." Answer:
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The answer is:
navigate

Problem: Given the question: Question: "How are the creators of the song "Hey Hey! Holy Mackerel!" described in the passage?" Context: "During the summer of 1969, a Chicago studio group produced a single record called "Hey Hey! Holy Mackerel! (The Cubs Song)" whose title and lyrics incorporated the catch-phrases of the respective TV and radio announcers for the Cubs, Jack Brickhouse and Vince Lloyd. Several members of the Cubs recorded an album called Cub Power which contained a cover of the song. The song received a good deal of local airplay that summer, associating it very strongly with that bittersweet season. It was played much less frequently thereafter, although it remained an unofficial Cubs theme song for some years after." Answer:
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The answer is:
a Chicago studio group

Problem: Given the question: Question: "What does not impede the view from the top of the city's tallest structure?" Context: "Melbourne's CBD, compared with other Australian cities, has comparatively unrestricted height limits and as a result of waves of post-war development contains five of the six tallest buildings in Australia, the tallest of which is the Eureka Tower, situated in Southbank. It has an observation deck near the top from where you can see above all of Melbourne's structures. The Rialto tower, the city's second tallest, remains the tallest building in the old CBD; its observation deck for visitors has recently closed." Answer:
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The answer is:
Melbourne's structures