tile edges matches {{N E S W}*}
num tile types=7
num binding types=3
tile edges={
{1 0 0 1}[.2]
{1 0 1 3}[.1](cyan)
{2 1 0 1}[.05](yellow)
{3 3 2 2}(green4)
{2 2 2 2}(firebrick)
{2 3 3 3}(red)
{3 2 3 2}(green)
}
binding strengths=
{3 1 1}