TASK DEFINITION: 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.
PROBLEM: Sentence: 'Switch Guide is devoted to assisting and encouraging users wishing to switch from Microsoft Internet Explorer to a safer and better-performing alternative in Netscape , Mozilla , or Firefox and Thunderbird .', Argument/Subject 1: 'netscape', Argument/Subject 2: 'internet explorer'

SOLUTION: be alternative to

PROBLEM: Sentence: 'Including cheap alprazolam alprazolam buy online Phentermine , Ambien , Xanax and many others .', Argument/Subject 1: 'xanax', Argument/Subject 2: 'online'

SOLUTION: buy

PROBLEM: Sentence: 'John the Baptist was the son of Zechariah and Elizabeth .', Argument/Subject 1: 'john', Argument/Subject 2: 'zechariah'

SOLUTION:
be son of