From the given sentence, extract the phrase (often noun or verb) that carries the given relationship. The generated phrase should be present in the sentence.
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Question: Given Relationship: 'discover', Sentence: 'School children throughout the United States and Canada will tell you that Christopher Columbus discovered America when he was searching for a faster , more efficient route to the riches of India .'

Answer: discovered


Question: Given Relationship: 'begin in', Sentence: 'Team registration for Fall Adult Coed begins Monday August 4 for the leagues which will begin play September 7 at the Eagle City Road Soccer Complex .'

Answer: begin


Question: Given Relationship: 'convert to', Sentence: 'After it converts ATP to ADP , the level of the latter accumulates outside the cell and the purine can bind to a purine receptor called P2Y1 .'

Answer:
converts