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: Electrostatic repulsions normally prevent a positively charged particle from colliding and reacting with a positively charged nucleus, but may be overcome by kinetic energy. Question: What normally prevent a positively charged particle from colliding and reacting with a positively charged nucleus, but may be overcome by kinetic energy?

A: electrostatic repulsions
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Q: Sentence: Capillaries are the smallest type of blood vessels. Question: What are the smallest type of blood vessels?

A: capillaries
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Q: Sentence: Exons are cut out before mrna leaves the nucleus. Question: Exons are cut out before what leaves the nucleus?

A:
mrna
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