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: nerve 
 Entity 2: fluid
yes

Entity 1: orange juice 
 Entity 2: calcium citrate
yes

Entity 1: stick insect 
 Entity 2: wing

yes