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.
--------
Question: Sentence: There are four valves in the heart. Question: How many valves are in the heart?

Answer: four


Question: Sentence: Fire extinguisher of the following items is necessary in a laboratory for safety purposes. Question: Which of the following items is necessary in a laboratory for safety purposes?

Answer: Fire extinguisher


Question: Sentence: During the synthesis phase, dna replication occurs in the cell cycle. Question: What phase does dna replication occur in the cell cycle?

Answer:
synthesis