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.

Ex Input:
Sentence: 'October birthstone , Pink Tourmaline set in 14K yellow frame with 14K rose , 14K white and 18K yellow gold .', Argument/Subject 1: 'tourmaline', Argument/Subject 2: 'october'

Ex Output:
be birthstone of

Ex Input:
Sentence: 'DOE- The Department of Energy will hold an open meeting of the Unconventional Resources Technology Advisory Committee on September 11-12 , 2008 at the Hilton Alexandria Old Town .', Argument/Subject 1: 'committee', Argument/Subject 2: 'september'

Ex Output:
meet in

Ex Input:
Sentence: 'Medina and Mecca are the two holy cities of Islam and non-Moslems are not permitted in either .', Argument/Subject 1: 'mecca', Argument/Subject 2: 'islam'

Ex Output:
be city in