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: 'Postnova first was based in an office in Munich downtown in the state of Bavaria in Germany .', Argument/Subject 1: 'bavarium', Argument/Subject 2: 'germany'

SOLUTION: be state in

PROBLEM: Sentence: 'Former Energy Secretary Hazel O'Leary was the guest speaker during a National Press Conference held in Washington , D.C. June 10 , 1994 .', Argument/Subject 1: 'conference', Argument/Subject 2: 'washington'

SOLUTION: be hold in

PROBLEM: Sentence: 'Orlando is served by Lynx .', Argument/Subject 1: 'orlando', Argument/Subject 2: 'lynx'

SOLUTION:
be serve by