TASK DEFINITION: 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).
PROBLEM: Entity 1: mammal 
 Entity 2: swelling

SOLUTION: no

PROBLEM: Entity 1: diatom 
 Entity 2: silicon dioxide

SOLUTION: yes

PROBLEM: Entity 1: ostia 
 Entity 2: stomach

SOLUTION:
no