TASK DEFINITION: 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).
PROBLEM: Entity 1: solid 
 Entity 2: sodium hydroxide

SOLUTION: yes

PROBLEM: Entity 1: cestode 
 Entity 2: proglottid

SOLUTION: yes

PROBLEM: Entity 1: vertebrate 
 Entity 2: red blood cell

SOLUTION:
yes