You are given a sentence and a question. You're expected to write the correct answer based on the sentence.

Sentence: All massive objects like planets have very strong gravitational pulls. The Sun is larger than Neptune. Question: So which object in space has a stronger gravitational pull?
Sun

Sentence: Debbie was exercising with a giant exercise ball. It rolled out from under her and rolled on the frictionless gym floor. She retrieved it and started again, but this time it rolled onto a rough rubber mat. Question: Which surface was smoother?
gym floor

Sentence: A plastic sheet can bend easier then a glass sheet. Question: If Mike bends both sheets, which is most likely to break in two?

glass sheet

