cob[6], bod[6], bot[6], cod[5], doc[5], bon[5], pod[5], pot[5], top[5], noc[4], dno[4], don[4], not[4], ton[4],
bo[4], co[3], do[3], od[3], op[3], po[3], ot[3], to[3], no[2], on[2],
