Express is related to Hurry. Hurry is etymologically related to Horse. Horse is related to Winner. 
Sight is related to Visual. Visual is related to Paint. Paint is related to Colorful. 
Express <--RelatedTo--> Hurry --EtymologicallyRelatedTo--> Horse <--RelatedTo--> Winner 
Sight <--RelatedTo--> Visual <--RelatedTo--> Paint <--RelatedTo--> Colorful 