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.

Ex 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?

Ex Output:
heart disease


Ex Input:
Sentence: Vertebrata are characterized by the presence of backbone. Question: Vertebrata are characterized by the presence of what?

Ex Output:
backbone


Ex Input:
Sentence: Substances that cannot be broken down into simpler substances with different properties are called elements. Question: What are substances that cannot be broken down into simpler substances with different properties called?

Ex Output:

elements