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: boar 
 Entity 2: head

SOLUTION: yes

PROBLEM: Entity 1: plastid 
 Entity 2: chlorophyll pigment

SOLUTION: yes

PROBLEM: Entity 1: gorilla 
 Entity 2: gravel

SOLUTION:
no