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: black bear 
 Entity 2: spur
no

Entity 1: pouch 
 Entity 2: organ
yes

Entity 1: airbreather 
 Entity 2: matrix

no