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: Solid property are alkali metals at room temperature. Question: What property are alkali metals at room temperature?

Answer: solid

Question: Sentence: Primary pollutants enter the air directly. Question: What type of pollutants enter the air directly?

Answer: primary

Question: Sentence: Vertical layering is an important feature of the terrestrial type of biome kind of community. Question: Vertical layering is an important feature of the terrestrial type of what kind of community?

Answer:
biome