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: embryo 
 Entity 2: pouch
Example Output: yes

Example Input: Entity 1: skin 
 Entity 2: and toe
Example Output: no

Example Input: Entity 1: dip 
 Entity 2: and phosphoric acid
Example Output:
yes