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: All matter in the universe is composed of one or more unique pure substances called elements. Question: All matter in the universe is composed of one or more unique pure substances called what?

SOLUTION: elements

PROBLEM: Sentence: Coronary artery disease is the leading cause of death worldwide. Question: What is the leading cause of death worldwide?

SOLUTION: coronary artery disease

PROBLEM: Sentence: The posterior end of a typical rib is called head. Question: The posterior end of a typical rib is called what?

SOLUTION:
head