Sunlight can cause/lead to Warmth. Hair can be used for Warmth. Hair can be Thin. 
Bridge is related to Land. Land is related to Grave. Grave is related to People. 
Sunlight --Causes--> Warmth <--UsedFor-- Hair --HasProperty--> Thin 
Bridge <--RelatedTo--> Land <--RelatedTo--> Grave <--RelatedTo--> People 