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: pencil lead 
 Entity 2: pack carbon atom
Example Output: yes

Example Input: Entity 1: joint 
 Entity 2: end
Example Output: no

Example Input: Entity 1: bee 
 Entity 2: exoskeleton
Example Output:
yes