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: plant defense 
 Entity 2: thorn
Example Output: yes

Example Input: Entity 1: dog 
 Entity 2: hair
Example Output: yes

Example Input: Entity 1: physiology 
 Entity 2: calcium carbonate
Example Output:
no