Year is related to Unit. Outfit is a type of Unit. Outfit is related to Costume. Costume is related to Clothing. 
Fleet is related to Ship. you are likely to find Cargo in/at/on Ship. 
Year <--RelatedTo--> Unit <--IsA-- Outfit <--RelatedTo--> Costume <--RelatedTo--> Clothing 
Fleet <--RelatedTo--> Ship <--AtLocation-- Cargo 