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.

[Q]: Sentence: 'This is important because Windows Vista , the upcoming version of the Microsoft Windows operating system , will require DRM for playback of HD content .', Argument/Subject 1: 'vista', Argument/Subject 2: 'microsoft window'
[A]: be version of


[Q]: Sentence: 'Pattaya is a city in Thailand , located on the east coast of the Gulf of Thailand , about 165 km southeast of Bangkok located within but not part of Amphoe Bang Lamung in the province of Chon Buri .', Argument/Subject 1: 'pattaya', Argument/Subject 2: 'thailand'
[A]: be city of


[Q]: Sentence: 'Greensboro is served by the Piedmont Triad International Airport .', Argument/Subject 1: 'greensboro', Argument/Subject 2: 'piedmont triad international airport'
[A]:
be serve by