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: material 
 Entity 2: metanephridia

SOLUTION: no

PROBLEM: Entity 1: carnivore 
 Entity 2: incisor

SOLUTION: yes

PROBLEM: Entity 1: liver 
 Entity 2: parasite

SOLUTION:
no