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: bread sauce 
 Entity 2: fluid

SOLUTION: no

PROBLEM: Entity 1: mammal 
 Entity 2: swelling

SOLUTION: no

PROBLEM: Entity 1: calcium 
 Entity 2: calcium phosphate

SOLUTION:
yes