White is a synonym of Light. Light is related to Color. Color is related to Type. Type is related to Fit. 
Toy is related to Part. Part is related to Stair. 
White <--Synonym--> Light <--RelatedTo--> Color <--RelatedTo--> Type <--RelatedTo--> Fit 
Toy <--RelatedTo--> Part <--RelatedTo--> Stair 