From the given sentence, extract the phrase (often noun or verb) that carries the given relationship. The generated phrase should be present in the sentence.

[EX Q]: Given Relationship: 'be wife of', Sentence: 'Michelle Obama , wife of Democratic Presidential candidate Barack Obama , acknowledges the crowd at the Democratic National Convention 2008 at the Pepsi Center in Denver , Colorado , on August 25 , 2008 .'
[EX A]: wife

[EX Q]: Given Relationship: 'be language of', Sentence: 'Setting The American Language and Culture Institute is the English language program at California State University San Marcos in beautiful San Diego North--the heart of coastal southern California .'
[EX A]: language

[EX Q]: Given Relationship: 'open on', Sentence: 'Registration for Cybernet Expo will open in February .'
[EX A]:
open