startshape branches rule branches {
straightline1 { } straightline2 {} branches { y 50 s .75 r 45} branches { y 50 s .75 r 315}
} rule straightline1 {
hollow{} straightline1 { s .999 y .1 r .05 }
} rule straightline2 {
hollow{} straightline2 { s .999 y .1 r 359.95 }
} rule hollow {
CIRCLE {b -1} CIRCLE { b 1 hue 130 saturation .95 s .99999 }
}