Occasional is derived from Occasion. Inspire is a type of Occasion. Rhetoric can Inspire. 
Vital is related to Eye. Eye is related to Use. Use is related to Bullet. 
Occasional --DerivedFrom--> Occasion <--IsA-- Inspire <--CapableOf-- Rhetoric 
Vital <--RelatedTo--> Eye <--RelatedTo--> Use <--RelatedTo--> Bullet 