input question: Here's a question and a few possible answers:   Q: The astronaut wanted to find the United States from outer space, so where did he aim his spacecraft? Possible A: history book, atlas, map, towards ocean, northern hemisphere  Why is "northern hemisphere" an answer aligned with human common sense????
output answer: united states is in the northern hemisphere


Here's a question and a few possible answers:   Q: The forgotten leftovers had gotten quite old, he found it covered in mold in the back of his what? Possible A: carpet, refrigerator, breadbox, fridge, coach  Why is "refrigerator" an answer aligned with human common sense?
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Answer: normally old food is put into a fridge and forgotten.


Q: Here's a question and a few possible answers:   Q: If a product doesn't last, what does it have a reputation of doing? Possible A: disintegrate, wear out, desolved, fall apart, dissipate  Why is "fall apart" an answer aligned with human common sense?
A: synonyms: fall to pieces


Question: Here's a question and a few possible answers:   Q: What happens when you try to help someone but make it worse? Possible A: succeed, do nothing, anticipate, hinder, hurting  Why is "hinder" an answer aligned with human common sense?
Answer: hindering someone is bad.


[Q]: Here's a question and a few possible answers:   Q: He had an index card he had to return, so where did he put it after finding the book he needed? Possible A: inside the book, oral report, library, fileing cabnet, card catalogue  Why is "card catalogue" an answer aligned with human common sense?
****
[A]: library card catalogue :: definition, merits and demerits - library ...


Problem: Given the question: Here's a question and a few possible answers:   Q: What must one be careful about when learning about science? Possible A: become educated, frustration, accidents, smiles, basketball  Why is "accidents" an answer aligned with human common sense?
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The answer is:
accidents must one be careful about when learning about science?