digraph example10 { rankdir="LR"; node [texmode="math",shape="circle",style="state"]; q0 [style="state,initial,final,accepting below",label="0"]; q1 [style="state",label="1"]; q2 [style="state",label="2"]; q3 [style="state",label="3"]; q4 [style="state",label="4"]; edge [texmode="math",lblstyle="auto"]; q0 -> q1 [label="a"]; q1 -> q0 [label="b"]; q1 -> q2 [label="a"]; q2 -> q1 [label="b"]; q2 -> q3 [label="a"]; q3 -> q2 [label="b"]; q3 -> q4 [label="a"]; q4 -> q3 [label="b"]; }