TASK DEFINITION: Given a sentence and two mentions from the text (arguments), indicate a phrase (a verb or noun phrase) that describes the relationship between the provided arguments.
PROBLEM: Sentence: 'Apart from connecting Gangtok the capital of Sikkim to Bagdogra with regular flights to Delhi and Calcutta , the Helicopter Service has become a boon to the tourism industry in Sikkim .', Argument/Subject 1: 'gangtok', Argument/Subject 2: 'sikkim'

SOLUTION: be capital of

PROBLEM: Sentence: 'Pro-I people have many reasons why they do not believe Taiwan is part of China .', Argument/Subject 1: 'taiwan', Argument/Subject 2: 'china'

SOLUTION: be part of

PROBLEM: Sentence: 'The U.S. ambassador to Iraq , Zalmay Khalilzad , said American policy would not dramatically change , despite the Democratic election success .', Argument/Subject 1: 'zalmay khalilzad', Argument/Subject 2: 'iraq'

SOLUTION:
be ambassador to