Ribbon is related to Bow. Bow is related to Performance. Spectacular is a type of Performance. 
Interrupt is a type of Signal. Signal is related to Bell. Bell is related to Room. 
Ribbon <--RelatedTo--> Bow <--RelatedTo--> Performance <--IsA-- Spectacular 
Interrupt --IsA--> Signal <--RelatedTo--> Bell <--RelatedTo--> Room 