Tomato is related to Juice. Juice is related to Milk. Milk is related to Produce. Produce is related to Fire. 
Horse is related to Western. Western is the opposite of Eastern. Eastern is related to Go. 
Tomato <--RelatedTo--> Juice <--RelatedTo--> Milk <--RelatedTo--> Produce <--RelatedTo--> Fire 
Horse <--RelatedTo--> Western <--Antonym--> Eastern <--RelatedTo--> Go 