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: Surface tension comes from the fact that particles at the surface of a liquid do not experience interactions from all directions imbalance of forces leads to what on the surface. Question: Surface tension comes from the fact that particles at the surface of a liquid do not experience interactions from all directions which leads to what on the surface?

A: imbalance of forces
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Q: Sentence: From viral infections did the first proto-oncogenes arise. Question: From what did the first proto-oncogenes arise?

A: viral infections
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Q: Sentence: The 'counting' instrument geiger counter is used to measure radioactivity. Question: What 'counting' instrument is used to measure radioactivity?

A:
geiger counter
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