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: slug 
 Entity 2: water

SOLUTION: no

PROBLEM: Entity 1: conductor 
 Entity 2: field

SOLUTION: yes

PROBLEM: Entity 1: urchin 
 Entity 2: round body

SOLUTION:
yes