This file is generated by troggle using the form documented at the form documented at handbook/survey/caveentry.html
False Fritzlhöhle 1626 40 ARGE-or-VfHO 1626-40 a caves-1626/40/40.svx ARGE-or-VfHO cave.
3 lines of the survexfile, then all the *begin lines:

*begin 40
*begin Fritzlhoehle
*begin 1

*begin 2
*begin 3
*begin 4
*begin 5

This is an ARGE or VfHO cave where we only have the survex file and no other information