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: Steve's favorite thing to do is ride in his red boat across the blue water.
Question: What color is Steve's boat?

Ex Output:
red.

Ex Input:
Sentence: The boy knew the elf had done something bad to him so he ran all the way home without looking back.
Question: What did the elf do to the boy?

Ex Output:
something bad.

Ex Input:
Sentence: The bird by the river chirped twice before breaking into song, to tell all the other animals to sing along.
Question: Who told the dog to sing along?

Ex Output:
The bird.