Rear is the opposite of Front. Front is related to Aspect. 
Performance is related to Ritual. Celebration is a type of Ritual. Celebration is related to Ceremony. Funeral is a type of Ceremony. 
Rear <--Antonym--> Front <--RelatedTo--> Aspect 
Performance <--RelatedTo--> Ritual <--IsA-- Celebration <--RelatedTo--> Ceremony <--IsA-- Funeral 