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: sea cucumber 
 Entity 2: organ
yes

Entity 1: joint 
 Entity 2: end
no

Entity 1: food pyramid 
 Entity 2: centriole

no