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.

Q: Given Relationship: 'be language of', Sentence: 'English is the official language of Ghana and Gambia .'

A: language
****
Q: Given Relationship: 'open on', Sentence: 'Registration for Cybernet Expo will open in February .'

A: open
****
Q: Given Relationship: 'be president of', Sentence: 'Abraham Lincoln was elected President of the United States in 1860 . "'

A:
President
****