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: amphibian 
 Entity 2: organic compound

SOLUTION: no

PROBLEM: Entity 1: nitrogen 
 Entity 2: covalent molecule

SOLUTION: yes

PROBLEM: Entity 1: sea jelly 
 Entity 2: vitamin

SOLUTION:
no