instruction:
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.
question:
Given Relationship: 'be language of', Sentence: 'Do you want to teach English as a Foreign Language inside Canada or another English-speaking country ?'
answer:
Language


question:
Given Relationship: 'be chairman of', Sentence: 'Frank , the powerful chairman of the House Financial Services Committee who has been credited with largely shaping the $ 700 billion bailout plan , also said he expects the cost of to be much less .'
answer:
chairman


question:
Given Relationship: 'use on', Sentence: 'A well-known and widely-used example of this type of service is the Domain Name System which is used to map Internet host names onto their corresponding network IP addresses .'
answer:

used