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.

Input: Consider Input: Sentence: Most turtle bodies are covered by a special bony or cartilaginous shell developed from their ribs. Question: Most turtle bodies are covered by a special bony or cartilaginous shell developed from their what?

Output: ribs

Input: Consider Input: Sentence: Boron only occurs naturally in compounds with oxygen element. Question: Boron only occurs naturally in compounds with what element?

Output: oxygen

Input: Consider Input: Sentence: The largest known proteins are titins. Question: What are the largest known proteins?
Output: titins