Aspect is a type of Characteristic. Aspect is related to Front. 
Boyfriend is derived from Boy. Boyfriend is a type of Spouse. Spouse is related to Dear. Dear is related to Clear. 
Characteristic <--IsA-- Aspect <--RelatedTo--> Front 
Boy <--DerivedFrom-- Boyfriend --IsA--> Spouse <--RelatedTo--> Dear <--RelatedTo--> Clear 