You are given a sentence and a question. You're expected to write an **incorrect** answer to the given question, such that it is relevant to the given sentence. Your answer should not be completely out of context. Try to write short answers with one or two words.

[Q]: Sentence: A shopping cart rolls by itself across a parking lot. Then it gets to a field. The cart rolls only a little more after it enters the field. Question: Why does this happen?
[A]: the parking lot is a rougher surface


[Q]: Sentence: Mike was comparing the mass of a boulder and a pebble. He found that the mass of the boulder was much greater then the mass of the pebble. Question: Which item emits weaker gravity?
[A]: boulder


[Q]: Sentence: John swings a rubber hammer at a brick wall and a glass hammer at a brick wall. Question: Which hammer is more likely to break?
[A]:
Rubber hammer