Treat is related to Candy. you are likely to find Candy in/at/on Show. 
Casualty is related to Wound. Wound is related to Cream. you are likely to find Cat in/at/on Cream. 
Treat <--RelatedTo--> Candy --AtLocation--> Show 
Casualty <--RelatedTo--> Wound <--RelatedTo--> Cream <--AtLocation-- Cat 