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).

Entity 1: food 
 Entity 2: vitamin b complex
yes

Entity 1: jellyfish 
 Entity 2: nerve ring
yes

Entity 1: macaw 
 Entity 2: beak

yes