In this task, you are given a sentence and a question, you would be asked to create the answer which is contained in the sentence provided.

Example Input: Sentence: During the first year after birth, a baby called a(n) infant. Question: During the first year after birth, what is a baby called?
Example Output: infant

Example Input: Sentence: A bow wake is created when the wave source moves faster than the wave propagation speed. Question: What is created when the wave source moves faster than the wave propagation speed?
Example Output: bow wake

Example Input: Sentence: The kelvin scale temperature scale is commonly used in science. Question: Which temperature scale is commonly used in science?
Example Output:
kelvin scale