6
4,2
"top(m+nap)",-999.99
"code",-999.99
"bottom(m+nap)",-999.99
"eenheid",-999.99
2.0,AA,-4.5,AA
-4.5,WAWO,-22.0,WAWO
-22.0,WAHO,-31.0,WAHO
-31.0,PZWA,-50.0,PZWA
-50.0,NN,-50.0,NN
-50.0,end,-,-