-al -er -ol a-a a-b a-i aaa aab aae aaf aai aal aao aap aar aas aax ab- aba abb abe abf abi abl abo abp abr abs abx aea aeb aee aef aei ael aeo aep aer aes aex af- afa afb afe aff afi afl afo afp afr afs afx ai- aia aib aie aif aii ail aio aip air ais aix al- ala alb ale alf ali all alo alp alr als alx aoa aob aoe aof aoi aol aoo aop aor aos aox ap- apa apb ape apf api apl apo app apr aps apx ar- ara arb are arf ari arl aro arp arr ars arx as- asa asb ase asf asi asl aso asp asr ass asx ax- axa axe axi axl axo axp axr axs axx b-p baa bab bae baf bai bal bao bap bar bas bax bba bbb bbe bbf bbi bbl bbo bbp bbr bbs bbx be- bea beb bee bef bei bel beo bep ber bes bex bfa bfb bfe bff bfi bfl bfo bfp bfr bfs bfx bi- bia bib bie bif bii bil bio bip bir bis bix bla blb ble blf bli bll blo blp blr bls blx boa bob boe bof boi bol boo bop bor bos box bpa bpb bpe bpf bpi bpl bpo bpp bpr bps bpx bra brb bre brf bri brl bro brp brr brs brx bsa bsb bse bsf bsi bsl bso bsp bsr bss bsx bxb bxi bxl bxo bxx eaa eab eae eaf eai eal eao eap ear eas eax eba ebb ebe ebf ebi ebl ebo ebp ebr ebs ebx eea eeb eee eef eel eeo eep eer ees eex ef- efa efb efe eff efi efl efo efp efr efs efx eia eib eie eif eii eil eio eip eir eis eix ela elb ele elf eli ell elo elp elr els elx eo- eoa eob eoe eof eoi eol eoo eop eor eos ep- epa epb epe epf epi epl epo epp epr eps epx era erb ere erf eri erl ero erp err ers es- esa esb ese esf esi esl eso esp esr ess esx ex- exa exe exi exl exo exp exr exs exx faa fab fae faf fai fal fao fap far fas fax fba fbb fbe fbf fbi fbl fbo fbp fbr fbs fbx fea feb fee fef fei fel feo fep fer fes fex ffa ffe fff ffi ffl ffo ffp ffr ffs ffx fia fib fie fif fii fil fip fir fis fix fla flb fle flf fli fll flo flp flr fls flx foa fob foe fof foi fol foo fop for fos fox fpa fpb fpe fpi fpl fpo fpp fpr fps fpx fra frb fre frf fri frl fro frp frr frs fsa fsb fse fsf fsi fsl fso fsp fsr fss fsx fxe fxi fxp fxr fxs fxx i-f ia- iaa iab iae iaf iai ial iao iap iar ias iba ibb ibe ibf ibi ibl ibo ibp ibr ibs ibx ie- iea iee ief iei iel iep ier ies iex ifa ifb ife iff ifi ifl ifo ifp ifr ifs ifx iia iib iie iif iii iil iio iip iir iis iix il- ila ilb ile ilf ili ill ilo ilp ilr ils ilx io- ioa iob ioe iof ioi iol ioo iop ior ios ipa ipb ipe ipf ipi ipl ipo ipp ipr ips ipx ir- ira irb ire irf iri irl iro irp irr irs irx is- isa isb ise isf isi isl iso isp isr iss ixe ixi ixl l-p la- laa lab lae laf lai lal lao lap lar las lax lba lbb lbe lbf lbi lbl lbo lbp lbr lbs lbx lea leb lee lef lei lel leo lep ler les lex lfa lfb lfe lff lfi lfl lfo lfp lfr lfs lfx lia lib lie lif lii lil lio lip lir lis lix lla llb lle llf lli lll llo llp llr lls loa lob loe lof loi lol loo lop lor los lox lpa lpb lpe lpf lpi lpl lpo lpp lpr lps lpx lra lrb lrf lri lro lrp lrr lrs lsa lsb lse lsf lsi lsl lso lsp lsr lss lxi lxo lxr lxx o-i oaa oab oae oaf oai oal oao oap oar oas oax ob- oba obb obe obf obi obl obo obp obr obs obx oea oeb oee oef oei oel oeo oep oer oes oex of- ofa ofb ofe off ofi ofl ofo ofp ofr ofs ofx oia oib oie oif oii oil oio oip oir ois ola olb ole olf oli oll olo olp ols oo- ooa oob oof ooi ool ooo oop oor oos oox op- opa opb ope opf opi opl opo opp opr ops opx or- ora orb ore orf ori orl oro orp orr ors orx os- osa osb ose osf osi osl oso osp osr oss osx ox- oxa oxb oxf oxi oxo oxx p-p paa pab pae paf pai pal pao pap par pas pax pba pbb pbe pbf pbi pbl pbo pbp pbr pbs pbx pea peb pee pef pei pel peo pep per pes pex pfa pfb pfe pff pfi pfl pfo pfp pfr pfs pfx pia pib pie pif pii pil pio pip pir pis pix pla plb ple plf pli pll plo plp plr pls plx poa pob poe pof poi pol poo pop por pos pox ppa ppb ppe ppf ppi ppl ppo ppp ppr pps ppx pra prb pre prf pri prl pro prp prr prs prx ps- psa psb pse psf psi psl pso psp psr pss psx pxe pxl pxr pxs ra- raa rab rae raf rai ral rao rap rar ras rax rba rbb rbe rbf rbi rbl rbo rbp rbr rbs rbx re- rea reb ree ref rei rel reo rep rer res rex rfa rfb rfe rff rfi rfl rfo rfp rfr rfs ria rib rie rif rii ril rio rip rir