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 elect by', Sentence: 'The General Assembly of ICSU is held every three years to discuss current development of science , to review strategy and programs of ICSU, and to elect a new executive board and officers .'

SOLUTION: elect

PROBLEM: Given Relationship: 'discover', Sentence: 'They were all established in Polynesia before Columbus discovered America , and hence could not have been introduced by later Spanish vessels .'

SOLUTION: discovered

PROBLEM: Given Relationship: 'be suburb of', Sentence: 'Using our FREE property finder , search all active Chicago Northwest suburbs real rstate listings from every Realtor in Northern Illinois .'

SOLUTION:
suburbs