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.

[EX Q]: Sentence: Rock containing fossilized seashells found on a mountaintop of the following provides the best evidence that earth has evolved over geologic time. Question: Which of the following provides the best evidence that Earth has evolved over geologic time?
[EX A]: rock containing fossilized seashells found on a mountaintop

[EX Q]: Sentence: Unsaturated fatty acids have bent chains. Question: What type of chains do unsaturated fatty acids have?
[EX A]: bent chains

[EX Q]: Sentence: Circulating the air prevents ethylene from accumulating, and carbon dioxide inhibits synthesis of new ethylene. Question: Circulating the air prevents ethylene from accumulating, and carbon dioxide inhibits synthesis of new what?
[EX A]:
ethylene