Definition: Given an entity, a before event, an after event, and an attribute related to the entity, generate a sentence as output. Your sentence should show the changes in the attribute of the entity.
Input: entity: the viola 
before: uncoated 
after: now coated in hard polyurethane varnish 
attr: state

state of the viola was uncoated before and now coated in a hard polyurethane varnish afterwards