-al -ol a-a a-b aaa aab aae aak aal aan aao aap aas ab- aba abb abe abk abl abn abo abp abs aea aeb aee aek ael aen aeo aep aes aka akb ake akk akl akn ako akp aks al- ala alb ale alk all aln alo alp als an- ana anb ane ank anl ann ano anp ans aoa aob aoe aok aol aon aoo aop aos ap- apa apb ape apk apl apn apo app aps as- asa asb ase ask asl asn aso asp ass b-p baa bab bae bak bal ban bao bap bas bba bbb bbe bbk bbl bbn bbo bbp bbs be- bea beb bee bek bel ben beo bep bes bka bkb bke bkk bkl bkn bko bkp bks bla blb ble blk bll bln blo blp bls bna bnb bne bnk bnl bnn bno bnp bns boa bob boe bok bol bon boo bop bos bpa bpb bpe bpl bpn bpo bpp bps bsa bsb bse bsk bsl bsn bso bsp bss eaa eab eae eak eal ean eao eap eas eba ebb ebe ebk ebl ebn ebo ebp ebs eea eeb eee eek eel een eeo eep ees eka ekb eke ekl eko ekp eks ela elb ele elk ell eln elo elp els en- ena enb ene enk enl enn eno enp ens eo- eoa eob eoe eok eol eon eoo eop eos ep- epa epb epe epl epn epo epp eps es- esa esb ese esk esl esn eso esp ess ka- kaa kab kae kak kal kan kao kap kas kba kbb kbe kbk kbl kbn kbo kbp kbs ke- kea keb kee kek kel ken keo kep kes kkb kke kkk kkl kkn kkp kks kl- kla klb klo kls kn- kna kne knk knl knn kno knp koa kob koe kok kol kon koo kop kos kpa kpe kpk kpl kpn kpo kpp kps ksa ksb kse ksk ksl ksn kso ksp kss l-p la- laa lab lae lak lal lan lao lap las lba lbb lbe lbk lbl lbo lbp lbs lea leb lee lek lel len leo lep les lka lkb lkl lkp lks lla llb lle llk lll lln llo llp lls lna lnb lne lnk lnl lnn lno lnp lns loa lob loe lok lol lon loo lop los lpa lpb lpe lpk lpl lpn lpo lpp lps lsa lsb lse lsk lsl lsn lso lsp lss naa nab nae nak nal nan nao nap nas nba nbb nbe nbk nbl nbn nbo nbp nbs ne- nea neb nee nek nel nen neo nep nes nka nke nkk nkn nko nkp nks nla nlb nle nlk nll nln nlo nlp nls nna nnb nne nnk nnl nnn nno nnp nns no- noa nob noe nok nol non noo nop nos npa npb npe npl npn npo npp nps nsa nsb nse nsk nsl nsn nso nsp nss oaa oab oae oak oal oan oao oap oas ob- oba obb obe obk obl obn obo obp obs oea oeb oee oel oen oeo oep oes oka okb oke okk okl oko okp oks ola olb ole olk oll oln olo olp ols on- ona onb one onk onl onn ono onp ons oo- ooa oob ook ool oon ooo oop oos op- opa opb ope opk opl opn opo opp ops os- osa osb ose osk osl osn oso osp oss p-p paa pab pae pak pal pan pao pap pas pba pbb pbe pbk pbl pbn pbo pbp pbs pea peb pee pek pel pen peo pep pes pka pkb pke pkl pkn pko pkp pks pla plb ple plk pll pln plo plp pls pn- pna pnb pne pnk pnl pnn pno pnp pns poa pob poe pok pol pon poo pop pos ppa ppb ppe ppk ppl ppn ppo ppp pps ps- psa psb pse psk psl psn pso psp pss saa sab sae sak sal san sao sap sas sba sbb sbe sbk sbl sbn sbo sbp sbs se- sea seb see sek sel sen seo sep ses sk- ska skb ske skk skl sko skp sks sla slb sle slk sll sln slo slp sls sna snb sne snk snl snn sno snp sns soa sob soe sok sol son soo sop sos spa spb spe spk spl spn spo spp sps ss- ssa ssb sse ssk ssl ssn sso ssp sss