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.

Example Input: Sentence: 'In 1973 , Ireland joined the European Economic Community which later became the European Union .', Argument/Subject 1: 'european economic community', Argument/Subject 2: 'european union'
Example Output: become

Example Input: Sentence: 'Branson Creek Golf Club is managed by Troon Golf , the leader in upscale golf course management .', Argument/Subject 1: 'golf club', Argument/Subject 2: 'troon golf'
Example Output: be manage by

Example Input: Sentence: 'Some say the December birthstone is the Blue Topaz , probably because it became quite popular as a jewelry stone , and many people started viewing the Zircon as a synthetic , confusing it with the cubic zirconia .', Argument/Subject 1: 'blue topaz', Argument/Subject 2: 'december'
Example Output:
be birthstone for