startshape A
rule A { 20*{r 18}B{x 3} B{s 3} }
rule B { 75*{x .5 s 1 .9 r 4}C{a -.5 b .1 z 1} } rule B { 75*{x .5 s 1 .9 r -4}C{a -.5 b .1 z 1} }
rule C { 20*{s .95}CIRCLE{ a -.8} 20*{s .95}TRIANGLE{ s .5 b 5 x 1 sat 1} } rule C .05 { B{r 90} } rule C .05 { B{r -90} }