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 synthesis phase in the cell cycle, dna replication occurs. Question: During which phase does dna replication occur in the cell cycle?
Example Output: synthesis

Example Input: Sentence: To confirm the work of another scientist, a scientist might replicate their work. Question: What might a scientist do to confirm the work of another?
Example Output: replicate their work

Example Input: Sentence: Circulating the air prevents ethylene from accumulating, and carbon dioxide inhibits synthesis of new ethylene. Question: Circulating the air prevents ethylene from accumulating, and carbon dioxide inhibits synthesis of new what?
Example Output:
ethylene