you are likely to find Purse in/at/on Home. Home is related to Furniture. Seat is a type of Furniture. you are likely to find Seat in/at/on Porch. 
Marry is related to Wedding. 
Purse --AtLocation--> Home <--RelatedTo--> Furniture <--IsA-- Seat --AtLocation--> Porch 
Marry <--RelatedTo--> Wedding 