instruction:
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.
question:
Sentence: There are four valves in the heart. Question: How many valves are in the heart?
answer:
four


question:
Sentence: Compounds with aluminum and silicon are commonly found in the clay fractions of soils derived from volcanic ash. Question: Compounds with aluminum and silicon are commonly found in the clay fractions of soils derived from what?
answer:
volcanic ash


question:
Sentence: Unpolarized light type of light is composed of many rays having random polarization directions. Question: What type of light is composed of many rays having random polarization directions?
answer:

unpolarized light