Which comparison between Aam and Mushtarak is correct?

First Map of Legal Wording: Khas, Aam, Mushtarak and Mu'awwal

• Aam extends one meaning to every member in its scope; Mushtarak has several distinct possible meanings
• Aam always gives a fixed number; Mushtarak always names one person
• Both terms mean that all possible meanings are intended together
• Mushtarak includes every member of a class; Aam requires evidence to select one of several meanings