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: '1941 - World War II : Hungary and Romania declare war on the United States .', Argument/Subject 1: 'war', Argument/Subject 2: 'unite state'
Example Output: be declare on

Example Input: Sentence: 'The Ukrainian language is the only official language in Ukraine , while Russian is also widely spoken and is known to most Ukrainians as a second language .', Argument/Subject 1: 'ukrainian', Argument/Subject 2: 'ukraine'
Example Output: be language in

Example Input: Sentence: 'Famously towered over by the magnificent bulk of Mount Kilimanjaro , Africa highest mountain , Amboseli is one of Kenya oldest and most visited parks .', Argument/Subject 1: 'mount kilimanjaro', Argument/Subject 2: 'africa'
Example Output:
be mountain in