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).

Input: Consider Input: Entity 1: lactose 
 Entity 2: hydrogen gas

Output: yes


Input: Consider Input: Entity 1: bladderwort 
 Entity 2: tooth

Output: no


Input: Consider Input: Entity 1: carnivore 
 Entity 2: back


Output: yes