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.

Example Input: Sentence: 'Quickly batch converts audio files between audio formats like MP3 , WAV , WMA , OGG.', Argument/Subject 1: 'audio', Argument/Subject 2: 'mp3'
Example Output: file to

Example Input: Sentence: 'It happened to be the book Elvis Presley was reading when he died in Memphis , Tennessee .', Argument/Subject 1: 'elvi', Argument/Subject 2: 'memphi'
Example Output: die in

Example Input: Sentence: 'Brian Doherty is an associate editor at Reason .', Argument/Subject 1: 'brian doherty', Argument/Subject 2: 'reason'
Example Output:
be editor at