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: tar 
 Entity 2: alkane

SOLUTION: yes

PROBLEM: Entity 1: rubber 
 Entity 2: carbon

SOLUTION: yes

PROBLEM: Entity 1: ant 
 Entity 2: side - branch root

SOLUTION:
no