Damage is a type of Casualty. Run is a type of Damage. Running is derived from Run. 
Desk can be used for Working. one thing you do when you Living is Working. Living requires Food. 
Casualty <--IsA-- Damage <--IsA-- Run <--DerivedFrom-- Running 
Desk --UsedFor--> Working <--HasSubevent-- Living --HasPrerequisite--> Food 