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: joint 
 Entity 2: cartilage
yes

Entity 1: tube 
 Entity 2: mantle
no

Entity 1: predator 
 Entity 2: webbed foot

yes