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.

Input: Consider Input: Sentence: 'The city of Tokyo is the capital of Japan and the tourists visit it round the year .', Argument/Subject 1: 'tokyo', Argument/Subject 2: 'japan'

Output: be capital city of

Input: Consider Input: Sentence: 'The largest member of OPEC , Saudi Arabia , controls one-fifth of the world 's crude reserves and constitutes more than 10 percent of world daily production of crude oil , making it one of the most critical suppliers influencing this market .', Argument/Subject 1: 'saudus arabium', Argument/Subject 2: 'opec'

Output: be member of

Input: Consider Input: Sentence: 'Deutsche Lufthansa AG , Europe 's second-biggest airline , is facing disruptions tomorrow after the pilots ' union called on workers to stage strikes over pay .', Argument/Subject 1: 'lufthansa', Argument/Subject 2: 'europe'
Output: be airline in