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: A wall of rocks or concrete a called a groin. Question: What is a wall of rocks or concrete called?
[A]: groin


[Q]: Sentence: Air pressure it decreases as altitude increases. Question: How does air pressure change as altitude increases?
[A]: it decreases


[Q]: Sentence: Plasma completes the list: solid, liquid, gas. Question: What state of matter completes the list: solid, liquid, gas?
[A]:
plasma