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: The name of positive ion ion always comes first. Question: The name of which ion always comes first?
Example Output: positive ion

Example Input: Sentence: Respiration cycles the organic carbon into carbon dioxide gas. Question: Respiration cycles the organic carbon into which gas?
Example Output: carbon dioxide

Example Input: Sentence: Work is done only if a force is exerted in the direction of motion. Question: Work is done only if a force is exerted in the direction of what?
Example Output:
motion