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: 'Engrossed Substitute Senate Bill 5121 was signed into law by the Governor on May 9 .', Argument/Subject 1: 'bill', Argument/Subject 2: 'governor'
Example Output: sign by

Example Input: Sentence: 'They made Israelis Threaten Iran And Iran threaten Israel and I said it is all bluff and on and on and on .', Argument/Subject 1: 'iran', Argument/Subject 2: 'israel'
Example Output: threaten

Example Input: Sentence: 'The invasion by Nazi Germany of Poland in September 1939 started World War II .', Argument/Subject 1: 'world war ius', Argument/Subject 2: 'september'
Example Output:
start in