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 chains in cellulose stack in parallel rows held together by hydrogen bonds between hydroxl groups groups. Question: The chains in cellulose stack in parallel rows held together by hydrogen bonds between which groups?
hydroxl groups

Sentence: Nuclei with even numbers of protons, neutrons, or both are more likely to be stable. Question: Nuclei with even numbers of protons, neutrons, or both are more likely to be this?
stable

Sentence: Sympatric speciation is when a new species arises without geographic separation. Question: What is it called when a new species arises without geographic separation?

sympatric speciation