#FIG 2.1
80 2
5 1 0 1 -1 0 0 0 0.000 0 0 0 280.382 158.147 273 160 274 154 283 151
6 47 143 57 151
4 0 0 6 0 -1 0 0.000 0 5 8 47 151 90

4 0 0 5 0 -1 0 0.000 0 4 4 53 147 o

-6
6 264 143 277 151
4 0 0 6 0 -1 0 0.000 0 5 12 264 151 100

4 0 0 5 0 -1 0 0.000 0 4 4 273 147 o

-6
2 1 0 1 -1 0 0 0 0.000 -1 0 0
	 40 153 47 153 47 160 9999 9999
2 3 0 1 -1 0 0 0 0.000 -1 0 0
	 40 40 40 160 280 160 308 48 40 40 9999 9999
2 1 0 1 -1 0 0 0 0.000 -1 0 0
	 160 167 153 167 153 160 9999 9999
2 1 1 1 -1 0 0 0 3.000 -1 0 0
	 40 160 160 200 280 160 9999 9999
2 1 1 1 -1 0 0 0 4.000 -1 0 0
	 308 48 160 200 40 40 9999 9999
2 1 2 1 -1 0 0 0 5.000 -1 0 0
	 174 44 157 233 9999 9999
2 1 2 1 -1 0 0 0 5.000 -1 0 0
	 160 160 160 238 9999 9999
2 1 0 1 -1 0 0 0 0.000 -1 0 0
	 167 44 166 51 173 52 9999 9999
4 0 3 12 0 -1 0 0.000 0 9 8 26 46 A

4 0 3 12 0 -1 0 0.000 0 9 8 26 161 B

4 0 3 12 0 -1 0 0.000 0 9 8 164 212 X

4 0 3 12 0 -1 0 0.000 0 9 7 287 163 C

4 0 3 12 0 -1 0 0.000 0 9 9 313 54 D