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.

Sentence: 'This is now very often the predicament of those who convert to Islam when they marry a Muslim .', Argument/Subject 1: 'muslim', Argument/Subject 2: 'islam'
convert to

Sentence: 'Emerald is the birthstone for May and is known for being the 20th and 35th wedding anniversary gemstone .', Argument/Subject 1: 'emerald', Argument/Subject 2: 'may'
be birthstone of

Sentence: 'I think of the Japanese bombing Pearl Harbor .', Argument/Subject 1: 'japanese', Argument/Subject 2: 'pearl harbor'
bomb