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: A metallic bond is the force of attraction between a positive metal ion and valence electrons. Question: What is the force of attraction between a positive metal ion and valence electrons?

Ex Output:
metallic bond


Ex Input:
Sentence: Earthquakes mark the motions of colliding plates and the locations where plates plunge into the mantle. Question: Earthquakes mark the motions of colliding plates and the locations where plates plunge into what?

Ex Output:
the mantle


Ex Input:
Sentence: Salicylic acid do willow trees produce to kill bacteria. Question: What do willow trees produce to kill bacteria?

Ex Output:

salicylic acid