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 city in', Sentence: 'Cost : customised by the event agencies that supervise City Tracks : EventMosaic in Ghent , Bruges and Ostend and Kelly Events in Antwerp and other Belgium cities .'

SOLUTION: cities

PROBLEM: Given Relationship: 'look to', Sentence: 'Vin looked at Ezra , who nodded to him to continue .'

SOLUTION: looked

PROBLEM: Given Relationship: 'be officer of', Sentence: 'Special meetings of the Members may only be called by the President or by any other officer of the Corporation .'

SOLUTION:
officer