canc[6], arco[5], raco[5], aron[4], nora[4], orna[4], rano[4],
cna[4], noc[4], car[4], rac[4], ano[3], ona[3], nar[3], ran[3], aro[3], ora[3], nor[3],
co[3], na[2], no[2], on[2], ar[2], or[2], ro[2],
