Discover is a type of Learn. Church can be used for Learn. you are likely to find Ceremony in/at/on Church. 
Fall is related to Evening. Evening is related to Sky. Sky is related to Building. 
Discover --IsA--> Learn <--UsedFor-- Church <--AtLocation-- Ceremony 
Fall <--RelatedTo--> Evening <--RelatedTo--> Sky <--RelatedTo--> Building 