Travel is related to Ride. Bus is a type of Ride. Bus is a synonym of Coach. 
you are likely to find Grave in/at/on Funeral. Grave is related to Home. Home is related to Library. Library is a type of Organization. 
Travel <--RelatedTo--> Ride <--IsA-- Bus <--Synonym--> Coach 
Funeral <--AtLocation-- Grave <--RelatedTo--> Home <--RelatedTo--> Library --IsA--> Organization 