Cabinet is a type of Housing. Shell is a type of Housing. Shell is related to Animal. 
Strict is a synonym of Hard. Hard is related to Firm. Firm is the opposite of Gentle. Gentle is related to Clothes. 
Cabinet --IsA--> Housing <--IsA-- Shell <--RelatedTo--> Animal 
Strict <--Synonym--> Hard <--RelatedTo--> Firm <--Antonym--> Gentle <--RelatedTo--> Clothes 