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: 'join', Sentence: 'Why did Denmark join the European Union in 1973 ?'

SOLUTION: join

PROBLEM: Given Relationship: 'follow at', Sentence: 'Interment will follow at Oakwood Cemetery under the direction of Stout Funeral Home .'

SOLUTION: follow

PROBLEM: Given Relationship: 'be service of', Sentence: 'PubMed is a service of the U.S. National Library of Medicine that includes over 18 million citations from MEDLINE and ... treatment results in neutrophilia , ...'

SOLUTION:
service