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: human body 
 Entity 2: melanin
Example Output: yes

Example Input: Entity 1: sedimentary rock 
 Entity 2: copper
Example Output: yes

Example Input: Entity 1: tree 
 Entity 2: coat
Example Output:
yes