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.

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

Sentence: When an oxidation number of an atom is decreased in the course of a redox reaction, that atom is being reduced. Question: When an oxidation number of an atom is decreased in the course of a redox reaction, that atom is being what?
reduced

Sentence: Hydrogen is the most abundant element in the universe. Question: What is the most abundant element in the universe?

hydrogen