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: rod 
 Entity 2: salivary gland
no

Entity 1: creep rhizome 
 Entity 2: rubber - like material

no