TASK DEFINITION: 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.
PROBLEM: Sentence: Smooth muscle regulates air flow in lungs. Question: Which kind of muscle regulates air flow in lungs?

SOLUTION: smooth

PROBLEM: Sentence: Meteorites are often comprised of remnants of the earliest material that formed in the solar system. Question: What astronomical phenomenon is often comprised of remnants of the earliest material that formed in the solar system?

SOLUTION: meteorites

PROBLEM: Sentence: Even the age of earth has been estimated on the basis of radioisotopes. Question: Even the age of earth has been estimated on the basis of what?

SOLUTION:
radioisotopes