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: animal sperm 
 Entity 2: pseudopod
yes

Entity 1: soul 
 Entity 2: cash
yes

Entity 1: egg yolk 
 Entity 2: vitamin d

yes