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.
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Question: Sentence: A solution forms when one substance dissolves into another. Question: What forms when one substance dissolves into another?

Answer: solution


Question: Sentence: Hydrogen gas is generated by the reaction of nitric acid and elemental iron else. Question: Hydrogen gas is generated by the reaction of nitric acid and what else?

Answer: elemental iron


Question: Sentence: The parent element are cations simply named after. Question: What are cations simply named after?

Answer:
the parent element