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: body 
 Entity 2: vein

SOLUTION: yes

PROBLEM: Entity 1: eagle 
 Entity 2: jaw

SOLUTION: yes

PROBLEM: Entity 1: rhizome 
 Entity 2: triglyceride

SOLUTION:
no