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.

[Q]: Given Relationship: 'join', Sentence: 'Why did Denmark join the European Union in 1973 ?'
[A]: join

[Q]: Given Relationship: 'be neighborhood in', Sentence: 'The Capitol Hill and University District neighborhoods in Seattle boast many thrift and consignment stores with merchandise that especially appeals to kids and teens .'
[A]: neighborhoods

[Q]: Given Relationship: 'cross', Sentence: 'This might entail that Caesar did not choose to cross the Rubicon , but that he was acting in a determined manner , like a machine .'
[A]:
cross