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: battery 
 Entity 2: fluid fill sac

A: no
****
Q: Entity 1: grass 
 Entity 2: spikelet

A: yes
****
Q: Entity 1: algae 
 Entity 2: root

A:
yes
****