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: woodpecker 
 Entity 2: bone
yes

Entity 1: centipede 
 Entity 2: poison gland
yes

Entity 1: breast tissue 
 Entity 2: iron core

no