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 son of', Sentence: 'Peter is called son of John in John 21:15 and Barjona in Matt 16 :17 .'
[EX A]: son

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

[EX Q]: Given Relationship: 'follow in', Sentence: 'Interment followed at Holy Name of Jesus roman Catholic Cemetery in Lawn .'
[EX A]:
followed