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 home of', Sentence: 'The ancestral home of the Dukes of Norfolk , Arundel Castle , although mainly of the 19th century , is probably built on foundations dating from the 12th century or earlier and has four ghosts : a white bird , a dandy , a boy and a girl .'
A:
home