[selected_node] | element/part | 
:-connection | text/plain | keep-alive
:-accept-encoding | text/plain | gzip, deflate
:-accept-language | text/plain | de,en-US;q=0.7,en;q=0.3
:-accept | text/plain | text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
:-user-agent | text/plain | Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Firefox/91.0
:-host | text/plain | localhost:1971
:-protocol | text/plain | HTTP/1.1
:-uri | text/plain | /?action=exit
| :-scheme | text/plain | http
| :-query | element/part | 
| | +-action | text/plain | exit
| :-path | text/plain | /
:-method | text/plain | GETmethod | text/plain | GETin | GETaction=update
| :-scheme | text/plain | http
| :-query | element/part | 
| | +-action | text/plain | update
| | +-choice | text/plain | bankholiday
| | +-day | text/plain | tuesday
| | +-lecturer | text/plain | schulze
| | +-week | text/plain | 12
| | +-year | text/plain | 2015
| :-path | text/plain | /
:-method | text/plain | GETTETETT| | +-year | text/plain | 2015
| :-path | text/plain | /
:-method | text/plain | GETt/plain | GET