--- /dev/null
+
+USING: accessors ui L-system ;
+
+IN: L-system.models.abop-2
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: abop-2 ( <L-system> -- <L-system> )
+
+ L-parser-dialect >>commands
+
+ "c(12)FAL" >>axiom
+
+ {
+ { "A" "F[&'(.7)!BL]>(137)[&'(.6)!BL]>(137)'(.9)!(.9)A" }
+ { "B" "F[-'(.7)!(.9)$CL]'(.9)!(.9)C" }
+ { "C" "F[+'(.7)!(.9)$BL]'(.9)!(.9)B" }
+
+ { "L" "~c(8){+f(.1)-f(.1)-f(.1)+|+f(.1)-f(.1)-f(.1)}" }
+
+ } >>rules ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: main ( -- ) [ L-system abop-2 "L-system" open-window ] with-ui ;
+
+MAIN: main
+
\ No newline at end of file