Shopping is related to Price. Price is related to Sales. Sales is related to Market. 
Element is related to Air. Air is related to Army. Army is related to Like. Like is related to Silver. 
Shopping <--RelatedTo--> Price <--RelatedTo--> Sales <--RelatedTo--> Market 
Element <--RelatedTo--> Air <--RelatedTo--> Army <--RelatedTo--> Like <--RelatedTo--> Silver 