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: vitamin d 
 Entity 2: active metabolite
Example Output: yes

Example Input: Entity 1: nuclear fission 
 Entity 2: atom
Example Output: yes

Example Input: Entity 1: full-bodied wines 
 Entity 2: tannin
Example Output:
yes