Screen is a type of Filter. Background is a type of Screen. Background is related to Scene. Scene is related to Dream. 
Actress is a type of Human. Human is related to Species. Species is related to Class. 
Filter <--IsA-- Screen <--IsA-- Background <--RelatedTo--> Scene <--RelatedTo--> Dream 
Actress --IsA--> Human <--RelatedTo--> Species <--RelatedTo--> Class 