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 key to', Sentence: 'As present processes are thought to explain all past events , the Uniformitarianism slogan is " the present is the key to the past . "'

A: key
****
Q: Given Relationship: 'return to', Sentence: 'Then John rode off into the northern January cold of 1777 to return to Philadelphia .'

A: return
****
Q: Given Relationship: 'be situate in', Sentence: 'Description The Hotel Akti Aphrodite is situated in the most popular resort of Corfu 's northern coastline in the very centre of Sidari .'

A:
situated
****