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: 'Buy xanax online , for xanax xanax without prescription from nurser , xanax during popper , am xanax dispensable diam , xanax indexer .', Argument/Subject 1: 'xanax', Argument/Subject 2: 'online'
buy