Given a statement, generate a question such that the answer is contained in that statement.

Ex Input:
an kangaroo probably has a placenta

Ex Output:
What does a kangaroo have?

Ex Input:
A phone is used to share an idea or message.

Ex Output:
What is used to share an idea or message?

Ex Input:
Algae play significant roles as producers in water areas.

Ex Output:
Algae play significant roles as producers in what area?