instruction:
Given a statement, generate a question such that the answer is contained in that statement.
question:
an kangaroo probably has a placenta
answer:
What does a kangaroo have?


question:
Most liverworts are not large in size.
answer:
What is not large in size?


question:
the outermost layer of modified leaves is usually green
answer:

What color is the outermost layer of modified leaves?