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


question:
Sentence: Bicarbonate ions protects tissues of the central nervous system from changes in ph. Question: What protects tissues of the central nervous system from changes in ph?
answer:
bicarbonate ions


question:
Sentence: Humans possess greater diversity of genetics type, compared to laboratory animals. Question: Humans possess greater diversity of what type, compared to laboratory animals?
answer:

genetics