5
4,2
"top(m+nap)",-999.99
"eenheid",-999.99
"bottom(m+nap)",-999.99
"eenheid",-999.99
9.3,bxz,6.7,bxz
6.7,syk1,5.93,syk1
5.93,syz,2.6,syz
2.6,wawok1,1.8,wawok1
1.8,end,-,-