| graph G { | |
| size="3,3" | |
| ratio="fill" | |
| node[shape="circle"] | |
| edge[style="bold"] | |
| a; | |
| b; | |
| c; | |
| d; | |
| e; | |
| f; | |
| g; | |
| h; | |
| i; | |
| j; | |
| c -- a[label="1"] | |
| a -- b[color="gray",style="bold",weight=0] | |
| f -- c[label="2"] | |
| g -- f[label="3"] | |
| f -- h[label="7"] | |
| g -- d[label="4"] | |
| b -- e[label="6"] | |
| b -- d[label="5"] | |
| e -- d[color="gray",style="bold",weight=0] | |
| i -- j[label="8"] | |
| } |