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 Input:
Given Relationship: 'be service of', Sentence: 'See a list of publications by Mayo Clinic authors on mitral valve disease on PubMed , a service of the National Library of Medicine .'

Ex Output:
service


Ex Input:
Given Relationship: 'open on', Sentence: 'Registration for Cybernet Expo will open in February .'

Ex Output:
open


Ex Input:
Given Relationship: 'be baptize by', Sentence: 'After John baptized Jesus , he bore record that he had baptized the Lamb of God .'

Ex Output:

baptized