-al -er -ol a-a a-i aaa aae aaf aai aal aao aap aar aax aea aee aef aei ael aeo aep aer aex af- afa afe aff afi afl afo afp afr afx ai- aia aie aif aii ail aio aip air aix al- ala ale alf ali all alo alp alr alx aoa aoe aof aoi aol aoo aop aor aox ap- apa ape apf api apl apo app apr apx ar- ara are arf ari arl aro arp arr arx ax- axa axe axi axl axo axp axr axx eaa eae eaf eai eal eao eap ear eax eea eee eef eel eeo eep eer eex ef- efa efe eff efi efl efo efp efr efx eia eie eif eii eil eio eip eir eix ela ele elf eli ell elo elp elr elx eo- eoa eoe eof eoi eol eoo eop eor ep- epa epe epf epi epl epo epp epr epx era ere erf eri erl ero erp err ex- exa exe exi exl exo exp exr exx faa fae faf fai fal fao fap far fax fea fee fef fei fel feo fep fer fex ffa ffe fff ffi ffl ffo ffp ffr ffx fia fie fif fii fil fip fir fix fla fle flf fli fll flo flp flr flx foa foe fof foi fol foo fop for fox fpa fpe fpi fpl fpo fpp fpr fpx fra fre frf fri frl fro frp frr fxe fxi fxp fxr fxx i-f ia- iaa iae iaf iai ial iao iap iar ie- iea iee ief iei iel iep ier iex ifa ife iff ifi ifl ifo ifp ifr ifx iia iie iif iii iil iio iip iir iix il- ila ile ilf ili ill ilo ilp ilr ilx io- ioa ioe iof ioi iol ioo iop ior ipa ipe ipf ipi ipl ipo ipp ipr ipx ir- ira ire irf iri irl iro irp irr irx ixe ixi ixl l-p la- laa lae laf lai lal lao lap lar lax lea lee lef lei lel leo lep ler lex lfa lfe lff lfi lfl lfo lfp lfr lfx lia lie lif lii lil lio lip lir lix lla lle llf lli lll llo llp llr loa loe lof loi lol loo lop lor lox lpa lpe lpf lpi lpl lpo lpp lpr lpx lra lrf lri lro lrp lrr lxi lxo lxr lxx o-i oaa oae oaf oai oal oao oap oar oax oea oee oef oei oel oeo oep oer oex of- ofa ofe off ofi ofl ofo ofp ofr ofx oia oie oif oii oil oio oip oir ola ole olf oli oll olo olp oo- ooa oof ooi ool ooo oop oor oox op- opa ope opf opi opl opo opp opr opx or- ora ore orf ori orl oro orp orr orx ox- oxa oxf oxi oxo oxx p-p paa pae paf pai pal pao pap par pax pea pee pef pei pel peo pep per pex pfa pfe pff pfi pfl pfo pfp pfr pfx pia pie pif pii pil pio pip pir pix pla ple plf pli pll plo plp plr plx poa poe pof poi pol poo pop por pox ppa ppe ppf ppi ppl ppo ppp ppr ppx pra pre prf pri prl pro prp prr prx pxe pxl pxr ra- raa rae raf rai ral rao rap rar rax re- rea ree ref rei rel reo rep rer rex rfa rfe rff rfi rfl rfo rfp rfr ria rie rif rii ril rio rip rir rix rla rle rlf rli rll rlo rlp rlr roa roe rof roi rol roo rop ror rox rpa rpe rpf rpi rpl rpo rpp rpr rpx rra rrf rri rrl rrp rrr rxp rxr xaa xaf xal xap xar xee xel xep xer xex xfa xfe xfl xfx xia xie xii xio xix xla xlf xli xlr xoa xof xoi xoo xop xor xox xpa xpe xpf xpl xpo xpp xrf xrx xxi xxl xxo xxp xxx