Given two entities as input, classify as "yes" if second entity is the part of the first entity. Otherwise classify them as "no". These are entities of meronym In linguistics, meronymy is a semantic relation between a meronym denoting a part and a holonym denoting a whole. In simpler terms, a meronym (i.e., second entity) is in a part-of relationship with its holonym (i.e., first entity).

Q: Entity 1: conjugation 
 Entity 2: nerve fibre

A: no
****
Q: Entity 1: motor vehicle exhaust 
 Entity 2: leaf petiole

A: no
****
Q: Entity 1: inner ear 
 Entity 2: three little bone

A:
yes
****