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 part of', Sentence: 'About 90 % of the total 192359 metric tonnes of coal reserves is concentrated in a few districts of Bihar , Orissa , Madhya Pradesh and West Bengal in the eastern part of India .'

SOLUTION: part

PROBLEM: Given Relationship: 'be county in', Sentence: 'Gravesend is in Kent county of the South East region of England .'

SOLUTION: county

PROBLEM: Given Relationship: 'be portion of', Sentence: 'Etobicoke is the western portion of the City of Toronto , Ontario , Canada , with a population of approximately 345,000....'

SOLUTION:
portion