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: walnut hull 
 Entity 2: enzyme
no

Entity 1: plant life 
 Entity 2: particulate
no

Entity 1: aphid 
 Entity 2: abdomen

yes