instruction:
You are given a sentence and a question. You're expected to write the correct answer based on the sentence.
question:
Sentence: A pot lid that is slid along a washed counter has very little resistance working against it, while one slid along a dirty counter has a lot of resistance working against it. Question: Which surface would cause the pot lid to suffer less of an increase in temperature when slid along it?
answer:
washed counter


question:
Sentence: A table is less rough then a lap. Question: Which surface will cause a napkin to heat up more when slid across it?
answer:
lap


question:
Sentence: Mary and Tim were going on a trip.  They were both driving their cars.  Both were driving at the same speed and left at the same time.  However, Mary stopped at four in the afternoon, while Tim drove until it was dark. Question: Who drove farther?
answer:

Tim