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: compound 
 Entity 2: bond
yes

Entity 1: tracheal system 
 Entity 2: spiracle
yes

Entity 1: abdomen 
 Entity 2: prolegs

yes