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.

[Q]: Sentence: Electrophiles have a strong tendency to react with nucleophiles. Question: Electrophiles have a strong tendency to react with what?
[A]: nucleophiles

[Q]: Sentence: Of course, a net external force is needed to cause any acceleration, just as newton proposed in his second law of motion. Question: Of course, a net external force is needed to cause any acceleration, just as newton proposed in his second law of what?
[A]: motion

[Q]: Sentence: In the tropics tradewinds are the prevailing winds called. Question: In the tropics what are the prevailing winds called?
[A]:
tradewinds