instruction:
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: Blood enters the heart in atria valve. Question: Blood enters the heart in what valve?
answer:
atria


question:
Sentence: Digestion begins in the gastrovascular cavity. Question: Where does digestion begin?
answer:
gastrovascular cavity


question:
Sentence: Original atoms are called parent type of isotopes. Question: Original atoms are called what type of isotopes?
answer:

parent