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: 'Horus was the son of Osiris and Isis .', Argument/Subject 1: 'horus', Argument/Subject 2: 'isis'

SOLUTION: be son of

PROBLEM: Sentence: 'Had Saddam not invaded Kuwait , we assume the price of gold would have continued its creep last August and eventually found itself below $ 350 .', Argument/Subject 1: 'saddam', Argument/Subject 2: 'kuwait'

SOLUTION: invade

PROBLEM: Sentence: 'With respect to desktop clouds , it 's noteworthy that last year Google acquired Postini , a company specializing in enterprise security and regulatory compliance .', Argument/Subject 1: 'postinus', Argument/Subject 2: 'google'

SOLUTION:
be acquire by