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: Natural selection works by selecting for alleles that confer beneficial traits or behaviors, while selecting against those for deleterious qualities. Question: What works by selecting for alleles that confer beneficial traits or behaviors, while selecting against those for deleterious qualities?
Example Output: natural selection

Example Input: Sentence: Single-celled eukaryotes that share some traits with animals are also called? Question: Single-celled eukaryotes that share some traits with animals are also called?
Example Output: eukaryotes

Example Input: Sentence: A(n) an axillary bud is above each leaf scar. Question: What is above each leaf scar?
Example Output:
an axillary bud