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: 'discover', Sentence: 'They were all established in Polynesia before Columbus discovered America , and hence could not have been introduced by later Spanish vessels .'

A: discovered
****
Q: Given Relationship: 'fire on', Sentence: 'The war began when a Confederate artillery battery fired on the Union-held Fort Sumter .'

A: fired
****
Q: Given Relationship: 'be locate in', Sentence: 'M University located in College Station , opened in 1876 and is the state 's oldest public institution of higher education .'

A:
located
****