-al -er -ol a-a a-i aaa aae aai aak aal aao aar aax aea aee aei aek ael aeo aer aex ai- aia aie aii aik ail aio air aix aka ake aki akk akl ako akr al- ala ale ali alk all alo alr alx aoa aoe aoi aok aol aoo aor aox ar- ara are ari ark arl aro arr arx ax- axa axe axi axk axl axo axr axx eaa eae eai eak eal eao ear eax eea eee eek eel eeo eer eex eia eie eii eik eil eio eir eix eka eke eki ekl eko ekr ela ele eli elk ell elo elr elx eo- eoa eoe eoi eok eol eoo eor era ere eri erk erl ero err ex- exa exe exi exl exo exr exx ia- iaa iae iai ial iao iar ie- iea iee iei iek iel ier iex iia iie iii iil iio iir iix ika ike iki ikk ikl iko ikr ikx il- ila ile ili ilk ill ilo ilr ilx io- ioa ioe ioi iol ioo ior ir- ira ire iri irk irl iro irr irx ixe ixi ixl ka- kaa kae kai kak kal kao kar kax ke- kea kee kei kek kel keo ker kex kia kie kii kik kil kio kir kix kke kki kkk kkl kkr kl- kla kli klo klr klx koa koe koi kok kol koo kor kra kri krk krl kro krr kxl kxo la- laa lae lai lak lal lao lar lax lea lee lei lek lel leo ler lex lia lie lii lik lil lio lir lix lka lkl lkr lla lle lli llk lll llo llr loa loe loi lok lol loo lor lox lra lri lrk lro lrr lxi lxo lxr lxx o-i oaa oae oai oak oal oao oar oax oea oee oei oel oeo oer oex oia oie oii oik oil oio oir oka oke oki okk okl oko okr ola ole oli olk oll olo oo- ooa ooi ook ool ooo oor oox or- ora ore ori ork orl oro orr orx ox- oxa oxi oxo oxx ra- raa rae rai rak ral rao rar rax re- rea ree rei rek rel reo rer rex ria rie rii rik ril rio rir rix rke rkk rko rla rle rli rll rlo rlr roa roe roi rok rol roo ror rox rra rri rrk rrl rrr rxr xaa xak xal xar xee xel xer xex xia xie xii xio xix xke xkl xla xli xlr xoa xoi xok xoo xor xox xrx xxi xxl xxo xxx