Trade is related to World. World is a synonym of Circle. Circle is related to Wheel. Wheel is related to Rolling. 
Stage is related to People. People is related to Heat. Heat is a synonym of Passion. 
Trade <--RelatedTo--> World <--Synonym--> Circle <--RelatedTo--> Wheel <--RelatedTo--> Rolling 
Stage <--RelatedTo--> People <--RelatedTo--> Heat <--Synonym--> Passion 