instruction:
Given a statement, generate a question such that the answer is contained in that statement.
question:
Algae play significant roles as producers in water areas.
answer:
Algae play significant roles as producers in what area?


question:
cloth-edged screens are used for separating compilations
answer:
What type of screens are used for separating compilations?


question:
research are often done in a laboratory.
answer:

What type of laboratory does research usually take place?