Land is related to Flat. Flat is related to Board. Board is related to Cut. Cut is related to Slide. 
Staff is related to Pole. Pole is related to Top. Top is related to Stove. 
Land <--RelatedTo--> Flat <--RelatedTo--> Board <--RelatedTo--> Cut <--RelatedTo--> Slide 
Staff <--RelatedTo--> Pole <--RelatedTo--> Top <--RelatedTo--> Stove 