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.

Input: Consider Input: Sentence: 'It serves as a crossroads between several major New England cities including Providence , Hartford and Boston .', Argument/Subject 1: 'providence', Argument/Subject 2: 'new england'

Output: be city in


Input: Consider Input: Sentence: 'XHTML is a modified version of HTML that is fully XML compatible , so that it can be processed by XML parsers .', Argument/Subject 1: 'xhtml', Argument/Subject 2: 'html'

Output: be version of


Input: Consider Input: Sentence: 'Buy cheap online Cialis .', Argument/Subject 1: 'ciali', Argument/Subject 2: 'online'


Output: buy