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: millipede 
 Entity 2: head

SOLUTION: yes

PROBLEM: Entity 1: stem 
 Entity 2: dendrite

SOLUTION: no

PROBLEM: Entity 1: annelid 
 Entity 2: circulatory system

SOLUTION:
yes