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).

Q: Entity 1: cytoplasm 
 Entity 2: fluid

A: no
****
Q: Entity 1: crab 
 Entity 2: one claw

A: yes
****
Q: Entity 1: reproduction system 
 Entity 2: prostate gland

A:
yes
****