3
graph [bb="0,0,126,108"];
4
ab [pos="27,90", width="0.75", height="0.50"];
5
cd [pos="27,18", width="0.75", height="0.50"];
6
CD [pos="99,18", width="0.75", height="0.50"];
7
AB [pos="99,90", width="0.75", height="0.50"];
8
ab -> cd [pos="e,27,36 27,72 27,64 27,55 27,46"];
9
ab -> CD [tailclip=false, pos="e,84,33 27,90 27,90 56,61 77,40"];
10
AB -> CD [headclip=false, pos="e,99,18 99,72 99,58 99,40 99,28"];
11
AB -> cd [tailclip=false, headclip=false, pos="e,27,18 99,90 99,90 52,43 34,25"];