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: ostrich 
 Entity 2: nitrogen

SOLUTION: no

PROBLEM: Entity 1: very coarse - grained igneous rock 
 Entity 2: ear

SOLUTION: no

PROBLEM: Entity 1: carotenoid 
 Entity 2: beta carotene

SOLUTION:
yes

