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: Ores rock contains concentrations of valuable minerals. Question: What type of rock contains concentrations of valuable minerals?
Example Output: ores

Example Input: Sentence: Wavelength is the distance between two corresponding points of adjacent waves called. Question: What is the distance between two corresponding points of adjacent waves called?
Example Output: wavelength

Example Input: Sentence: Potential energy type of energy is possessed by autumn leaves before they fall. Question: What type of energy is possessed by autumn leaves before they fall?
Example Output:
potential energy