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: The base of a nucleotide within dna consists of nitrogen. Question: What does the base of a nucleotide within dna consist of?
nitrogen

Sentence: In some ways, a collection of gas molecules represents the simplest form of matter. Question: In some ways, a collection of gas molecules represents the simplest form of what?
matter

Sentence: Cell mutations is the most common cause of cancer. Question: What is the most common cause of cancer?

cell mutations