Regret is related to Negative. Negative is a type of Film. Film is related to Horror. Horror is related to Scared. 
Room is related to Door. you are likely to find Key in/at/on Door. Key is related to Note. Note is related to Thank. 
Regret <--RelatedTo--> Negative --IsA--> Film <--RelatedTo--> Horror <--RelatedTo--> Scared 
Room <--RelatedTo--> Door <--AtLocation-- Key <--RelatedTo--> Note <--RelatedTo--> Thank 