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.
--------
Question: Sentence: 'Frankfurt and Munich are the biggest airports in Germany .', Argument/Subject 1: 'frankfurt', Argument/Subject 2: 'germany'

Answer: be airport in


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

Answer: be declare on


Question: Sentence: 'Napier city is the main centre of the Hawkes Bay , Hastings , and Havelock North are also important town in the region .', Argument/Subject 1: 'napier', Argument/Subject 2: 'hawke bay'

Answer:
be city in