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

Example input: Sentence: Jacob and Benny are squatting at the gym. Jacob has thin frail legs and Benny has big strong legs. Question: Who squats less weight?
Example output: Jacob
Example explanation: Typically, people with thin frail legs squat less weight than people with big strong legs, so the answer is Jacob.
Q: Sentence: Jim could run twice as fast as his sister Jen. They had to deliver some urgent vaccines to the next town to stop the spread of a dangerous virus. Question: Who should run with the vaccines in order to get them there in a shorter amount of time?
A:
Jim