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: 'Horus was the son of Osiris and Isis .', Argument/Subject 1: 'horus', Argument/Subject 2: 'isis'
Example Output: be son of

Example Input: Sentence: 'A history reading comprehension lesson on the 23rd president of the United States , Benjamin Harrison .', Argument/Subject 1: 'benjamin harrison', Argument/Subject 2: 'unite state'
Example Output:
be president of