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: 'Frankfurt and Munich are the biggest airports in Germany .', Argument/Subject 1: 'frankfurt', Argument/Subject 2: 'germany'

SOLUTION: be airport in

PROBLEM: Sentence: 'Abraham believed the Lord and that the Lord reckoned this for righteousness is obviously an act of grace from God 's side .', Argument/Subject 1: 'abraham', Argument/Subject 2: 'lord'

SOLUTION: believe in

PROBLEM: Sentence: 'The International World Wide Web Conferences Steering Committee to be held in Madrid , Spain capital .', Argument/Subject 1: 'conference', Argument/Subject 2: 'madrid'

SOLUTION:
be hold in