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: reproduction 
 Entity 2: beta sheet
no

Entity 1: pewter 
 Entity 2: tooth
no

Entity 1: tumour cell 
 Entity 2: cell - surface bind activity

yes