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: 'The information industry plays an important role in the economic structure adjustment after China entered into WTO .', Argument/Subject 1: 'china', Argument/Subject 2: 'wto'
enter

Sentence: 'This related article explains why Yahoo! buying Konfabulator is more than just about widgets .', Argument/Subject 1: 'yahoo!', Argument/Subject 2: 'konfabulator'
buy

Sentence: 'Supported music formats include MP3 OGG FLAC WAV and WMA along with SMV video files and JPEG BMP and GIF photos .', Argument/Subject 1: 'wma', Argument/Subject 2: 'mp3'

file to