Vacuum is related to Clean. Clean is related to Organization. 
Country is related to Border. you are likely to find Border in/at/on Ship. Ship is related to Commander. Commander is related to Naval. 
Vacuum <--RelatedTo--> Clean <--RelatedTo--> Organization 
Country <--RelatedTo--> Border --AtLocation--> Ship <--RelatedTo--> Commander <--RelatedTo--> Naval 