You are given a sentence and a question in the input. The information provided in the sentence should be enough to answer the question. You're expected to write the correct answer. Do not use any facts other than those provided in the sentence.

Ex Input:
Sentence: It was a very dark night, but the moon was shining bright.
Question: What time of day did Jeff and Forrest go for a walk?

Ex Output:
at night.

Ex Input:
Sentence: They grew corn.
Question: What did the Nixon family grow on their farm?

Ex Output:
Corn.

Ex Input:
Sentence: Emma's mother was in the back room she could safely cut up the tomato and place it on her sandwich without her mother knowing because she knew her mother would be upset.
Question: Why did Emma add the tomato to her sandwich when her mom was not in the room?

Ex Output:
She knew her mother would be upset.