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: goldfish 
 Entity 2: white spot

SOLUTION: yes

PROBLEM: Entity 1: stingray 
 Entity 2: disk

SOLUTION: yes

PROBLEM: Entity 1: hypha form 
 Entity 2: threadlike filament

SOLUTION:
yes