-al -ol a-a a-c aaa aac aal aan aao aax ac- aca acc acl acn aco acx al- ala alc all aln alo alx an- ana anc anl ann ano anx aoa aoc aol aon aoo aox ax- axa axl axn axo axx c-- caa cac cal can cao cax cca ccc ccl ccn cco ccx cl- cla clc cll cln clo clx cn- cna cnc cnl cnn cno cnx co- coa coc col con coo cox cxc cxl cxo cxx la- laa lac lal lan lao lax lca lcc lcl lcn lco lcx lla llc lll lln llo lna lnc lnl lnn lno loa loc lol lon loo lox lxc lxo lxx naa nac nal nan nao nax nca ncc ncl ncn nco ncx nla nlc nll nln nlo nlx nna nnc nnl nnn nno no- noa noc nol non noo nox nxc nxl oaa oac oal oan oao oax oc- oca occ ocl ocn oco ocx ola olc oll oln olo on- ona onc onl onn ono onx oo- ooa ooc ool oon ooo oox ox- oxa oxc oxn oxo oxx xaa xac xal xan xcl xcx xla xna xnc xno xoa xoc xon xoo xox xxl xxo xxx