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: stem 
 Entity 2: dendrite
Example Output: no

Example Input: Entity 1: laser 
 Entity 2: convection current
Example Output: no

Example Input: Entity 1: fat 
 Entity 2: organochlorine
Example Output:
yes