Detailed Instructions: 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: Convex lenses are thicker in the middle than at the edges so they cause rays of light to converge, or meet, at a point called focus. Question: Convex lenses are thicker in the middle than at the edges so they cause rays of light to converge, or meet, at a point called what?
A:
focus