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.

Input: Consider Input: 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?

Output: imbalance of forces

Input: Consider Input: Sentence: From viral infections did the first proto-oncogenes arise. Question: From what did the first proto-oncogenes arise?

Output: viral infections

Input: Consider Input: Sentence: Research that focuses on understanding basic properties and processes without concern for the usefulness of this understanding is known as pure research kind of research. Question: Research that focuses on understanding basic properties and processes without concern for the usefulness of this understanding is known as what kind of research?
Output: pure research