Explain the difference between the following concepts:

• Formally defined crimes and materially defined crimes, with an example of each  crime. 
• A legal norm, a criminal norm and a criminal sanction indicate whether these form a crime or not with  example of each.
• Automatism due to involuntary conduct (sane automatism) and unconscious behaviour attributable to mental illness (insane automatism).provide an example of each form of automatism.
• Private defence and necessity.