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.

Sentence: 'Buffy looks at Xander .', Argument/Subject 1: 'buffy', Argument/Subject 2: 'xander'
look up at

Sentence: 'Buy V-RX Va herbal alternative to Viagra from the online sex store at SexyFun.co.uk .', Argument/Subject 1: 'viagra', Argument/Subject 2: 'online'
buy

Sentence: 'Rajdhani connects New Delhi with major cities in India .', Argument/Subject 1: 'new delhus', Argument/Subject 2: 'indium'

be city of