TASK DEFINITION: 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.
PROBLEM: Sentence: 'Italy invaded Greece in October 1940 via Albania but was forced to withdraw after a few months .', Argument/Subject 1: 'greece', Argument/Subject 2: 'italy'

SOLUTION: be invade by

PROBLEM: Sentence: 'John is a 25 year old guy from Newyork , New York , USA .', Argument/Subject 1: 'john', Argument/Subject 2: 'new york'

SOLUTION: be guy from

PROBLEM: Sentence: 'LICENSEE shall pay to the LICENSOR a nonrefundable licensing fee in the amount of ten thousand dollars payable upon the execution of this LICENSE by LICENSEE.', Argument/Subject 1: 'licensee', Argument/Subject 2: 'licensor'

SOLUTION:
pay to