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.

Sentence: Polysaccharides are polymers composed of many sugar building blocks called. Question: What are polymers composed of many sugar building blocks called?
polysaccharides

Sentence: If an air mass forms over an ocean it is called a maritime air mass. Question: If an air mass forms over an ocean it is called what type of air mass?
maritime

Sentence: Iron sulfide iron and sulfur are mixed together in a certain ratio and heated, what do they become. Question: When iron and sulfur are mixed together in a certain ratio and heated, what do they become?

iron sulfide