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: kelp 
 Entity 2: rootstock
no

Entity 1: skin 
 Entity 2: and toe
no

Entity 1: uterus 
 Entity 2: progesterone

yes