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: panther 
 Entity 2: oxygen

SOLUTION: no

PROBLEM: Entity 1: people 
 Entity 2: lung

SOLUTION: yes

PROBLEM: Entity 1: amphibian 
 Entity 2: body

SOLUTION:
no