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: The acidity of a solution is typically assessed experimentally by measurement of its ph. Question: The acidity of a solution is typically assessed experimentally by measurement of its what?
answer:
ph


question:
Sentence: When the energy of the earthquake reaches shore, it forms a huge wave called a tsunami. Question: When the energy of the earthquake reaches shore, it forms a huge wave called?
answer:
a tsunami


question:
Sentence: Rapid decrease is a trend that is occurring involving the extent of arctic sea ice in summer. Question: What trend is occurring involving the extent of arctic sea ice in summer?
answer:

rapid decrease