Wise is related to Man. Man is the opposite of Prisoner. Prisoner is related to Inside. Inside is related to Safe. 
Shell is a type of Housing. Shell is related to Defense. Defense is related to Denial. 
Wise <--RelatedTo--> Man <--Antonym--> Prisoner <--RelatedTo--> Inside <--RelatedTo--> Safe 
Housing <--IsA-- Shell <--RelatedTo--> Defense <--RelatedTo--> Denial 