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.

Example Input: Sentence: Heart disease is the leading cause of death in the united states. Question: What is the leading cause of death in the united states?
Example Output: heart disease

Example Input: Sentence: Breathing control is only effective if ventilation is matched to blood flow through alveolar capillaries. Question: What is only effective if ventilation is matched to blood flow through alveolar capillaries?
Example Output: breathing control

Example Input: Sentence: A fact or question is only considered science if it is testable. Question: A fact or question is only considered science if it has what property?
Example Output:
it is testable