Ineed to make a simple acrostic poem for the word "charter" (the definition is "a document that granted the right to form a colony")

C- Colonies 
H- Have defined
A- All
R- Rules and regulations
T- Text or on print 
E- Expressing
R- Rights and privileges

An informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.

Dksndnskkkdidii i leído