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).

Ex Input:
Entity 1: fen 
 Entity 2: underground stem

Ex Output:
no


Ex Input:
Entity 1: bike 
 Entity 2: bicycle wheel

Ex Output:
yes


Ex Input:
Entity 1: oak 
 Entity 2: leave

Ex Output:

yes