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: leaf 's surface 
 Entity 2: palisade cell

SOLUTION: yes

PROBLEM: Entity 1: plant 
 Entity 2: limb

SOLUTION: no

PROBLEM: Entity 1: earth 's mantle 
 Entity 2: bone marrow

SOLUTION:
no