Art is related to Class. Class is a type of Collection. Mail is a type of Collection. 
Technician is a type of Professional. Critic is a type of Professional. Critic is a type of Person. Person is related to Woman. 
Art <--RelatedTo--> Class --IsA--> Collection <--IsA-- Mail 
Technician --IsA--> Professional <--IsA-- Critic --IsA--> Person <--RelatedTo--> Woman 