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).

Example Input: Entity 1: centipede 
 Entity 2: poison gland
Example Output: yes

Example Input: Entity 1: moss 
 Entity 2: pollen
Example Output: yes

Example Input: Entity 1: ovary 
 Entity 2: sex hormone
Example Output:
yes