-al -er -ol a-a a-b aaa aab aae aak aal aao aap aar aav ab- aba abb abe abk abl abo abp abr abv aea aeb aee aek ael aeo aep aer aev aka akb ake akk akl ako akp akr akv al- ala alb ale alk all alo alp alr alv aoa aob aoe aok aol aoo aop aor aov ap- apa apb ape apk apl apo app apr apv ar- ara arb are ark arl aro arp arr arv av- ava avb ave avk avl avo avp avr b-p baa bab bae bak bal bao bap bar bav bba bbb bbe bbk bbl bbo bbp bbr be- bea beb bee bek bel beo bep ber bev bka bkb bke bkk bkl bko bkp bkr bkv bla blb ble blk bll blo blp blr blv boa bob boe bok bol boo bop bor bov bpa bpb bpe bpl bpo bpp bpr bpv bra brb bre brk brl bro brp brr brv bva bvb bve bvk bvl bvo bvp bvr bvv eaa eab eae eak eal eao eap ear eav eba ebb ebe ebk ebl ebo ebp ebr ebv eea eeb eee eek eel eeo eep eer eev eka ekb eke ekl eko ekp ekr ekv ela elb ele elk ell elo elp elr elv eo- eoa eob eoe eok eol eoo eop eor ep- epa epb epe epl epo epp epr era erb ere erk erl ero erp err erv eva evb eve evl evo evp evr evv ka- kaa kab kae kak kal kao kap kar kav kba kbb kbe kbk kbl kbo kbp kbr ke- kea keb kee kek kel keo kep ker kev kkb kke kkk kkl kkp kkr kkv kl- kla klb klo klr klv koa kob koe kok kol koo kop kor kpa kpe kpk kpl kpo kpp kpr kpv kra krk krl kro krp krr krv kva kvb kvk kvo kvp kvr kvv l-p la- laa lab lae lak lal lao lap lar lav lba lbb lbe lbk lbl lbo lbp lbr lbv lea leb lee lek lel leo lep ler lev lka lkb lkl lkp lkr lla llb lle llk lll llo llp llr llv loa lob loe lok lol loo lop lor lov lpa lpb lpe lpk lpl lpo lpp lpr lpv lra lrb lrk lro lrp lrr lrv lva lvb lve lvl lvp lvr lvv oaa oab oae oak oal oao oap oar oav ob- oba obb obe obk obl obo obp obr obv oea oeb oee oel oeo oep oer oka okb oke okk okl oko okp okr ola olb ole olk oll olo olp oo- ooa oob ook ool ooo oop oor oov op- opa opb ope opk opl opo opp opr opv or- ora orb ore ork orl oro orp orr orv ov- ova ovb ove ovl ovo ovp ovv p-p paa pab pae pak pal pao pap par pav pba pbb pbe pbk pbl pbo pbp pbr pea peb pee pek pel peo pep per pev pka pkb pke pkl pko pkp pkr pla plb ple plk pll plo plp plr plv poa pob poe pok pol poo pop por pov ppa ppb ppe ppk ppl ppo ppp ppr ppv pra prb pre prk prl pro prp prr prv pva pvb pve pvk pvl pvo pvp pvr pvv ra- raa rab rae rak ral rao rap rar rav rba rbb rbe rbk rbl rbo rbp rbr re- rea reb ree rek rel reo rep rer rev rkb rke rkk rko rkp rkv rla rle rll rlo rlp rlr roa rob roe rok rol roo rop ror rov rpa rpb rpe rpk rpl rpo rpp rpr rpv rra rrb rrk rrl rrp rrr rva rvb rve rvl rvo rvp rvr rvv v-a v-e vaa vab vae vak val vao vap var vav vba vbk vbl vbo vbr vbv vea veb vee vek vel veo vep ver vka vkb vkp vl- vla vlb vle vlk vll vlo vlp vlv voa vob voe vok vol voo vop vor vov vpa vpb vpe vpk vpl vpo vpp vpr vra vrb vre vrk vrp vrr vva vvb vvo vvr vvv