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: centipede 
 Entity 2: poison gland

SOLUTION: yes

PROBLEM: Entity 1: mantle 
 Entity 2: magma

SOLUTION: yes

PROBLEM: Entity 1: air sacs 
 Entity 2: carbon dioxide

SOLUTION:
yes