Slot is a type of Status. Status is related to Danger. Danger is related to Prevent. 
Ship is related to Large. Large is related to Couch. Couch can be used for Furniture. Furniture is related to Clock. 
Slot --IsA--> Status <--RelatedTo--> Danger <--RelatedTo--> Prevent 
Ship <--RelatedTo--> Large <--RelatedTo--> Couch --UsedFor--> Furniture <--RelatedTo--> Clock 