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: Overharvesting is a serious threat particularly to aquatic species. Question: Overharvesting is a serious threat particularly to which species?
aquatic species

Sentence: Fire extinguisher of the following items is necessary in a laboratory for safety purposes. Question: Which of the following items is necessary in a laboratory for safety purposes?
Fire extinguisher

Sentence: Rod is the general shape of centrioles. Question: What is the general shape of centrioles?
rod