TASK DEFINITION: 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.
PROBLEM: Given Relationship: 'be wife of', Sentence: 'The idea that Mary Magdalene was the wife of Jesus was popularized by books like the pseudo-historical Holy Blood , Holy Grail , a novel heavily influenced by the former book .'

SOLUTION: wife

PROBLEM: Given Relationship: 'be chairman of', Sentence: 'Alan Greenspan , Chairman of the Board of Governors of the Federal Reserve System , gave the conference keynote address .'

SOLUTION: Chairman

PROBLEM: Given Relationship: 'be son of', Sentence: 'William is the son of William John McPhail and Alice Clarice Morris .'

SOLUTION:
son