7
4,2
"top(m+nap)",-999.99
"eenheid",-999.99
"bottom(m+nap)",-999.99
"eenheid",-999.99
9.0,bxwiz,7.2,bxwiz
7.2,bxz,5.9,bxz
5.9,syk1,5.1,syk1
5.1,syz,3.1,syz
3.1,wawok1,1.2,wawok1
1.2,wawoz,-1.8,wawoz
-1.0,end,-,-