Slavery is related to Master. Master is related to King. King is related to Top. 
Calendar is a type of Table. you are likely to find Calendar in/at/on Wall. Wall is related to Surrounding. 
Slavery <--RelatedTo--> Master <--RelatedTo--> King <--RelatedTo--> Top 
Table <--IsA-- Calendar --AtLocation--> Wall <--RelatedTo--> Surrounding 