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

Ex Input:
Sentence: Bob has two almost identical toy wagons that his dad built for him, one red one and one blue one. He's piled a bunch of toys and other objects in both of them. He pushes the blue one and it easily goes fast across the patio. He pushes the red one, and it barely gets moving. Question: Which one has a lighter load?

Ex Output:
the blue wagon

Ex Input:
Sentence: A plastic bottle rolling across a picnic table experiences low friction, while a plastic bottle rolling across a lawn experiences high friction. Question: Which surface will make the plastic bottle get hotter as it rolls across?

Ex Output:
lawn

Ex Input:
Sentence: Rebecca heard two birds chirping in the forest. One was on a tree nearer to her and the other was on a tree far away. Question: Which bird sounded louder?

Ex Output:
nearer bird