-al -ol a-a a-b aaa aab aad aak aal aan aao aap aar ab- aba abb abd abk abl abn abo abp abr ad- ada adb add adk adl adn ado adp adr aka akb akd akk akl akn ako akp akr al- ala alb ald alk all aln alo alp alr an- ana anb and ank anl ann ano anp anr aoa aob aod aok aol aon aoo aop aor ap- apa apb apd apk apl apn apo app apr ar- ara arb ard ark arl arn aro arp arr b-p baa bab bad bak bal ban bao bap bar bba bbb bbd bbk bbl bbn bbo bbp bbr bda bdb bdd bdk bdl bdo bdp bdr bka bkb bkk bkl bkn bko bkp bkr bla blb bld blk bll bln blo blp blr bna bnb bnd bnk bnl bnn bno bnp bnr boa bob bod bok bol bon boo bop bor bpa bpb bpd bpl bpn bpo bpp bpr bra brb brd brk brl brn bro brp brr daa dab dad dak dal dan dao dap dar dba dbb dbd dbk dbl dbn dbo dbp dbr dda ddb ddd ddk ddl ddn ddo ddp ddr dka dkb dkk dkl dko dkp dkr dl- dla dlb dld dlk dll dlo dlp dlr dna dnb dnd dnk dnl dnn dno dnp dnr doa dob dod dok dol don doo dop dor dpa dpb dpd dpk dpl dpn dpo dpp dpr dra drb drd drk drl drn dro drp drr ka- kaa kab kad kak kal kan kao kap kar kba kbb kbd kbk kbl kbn kbo kbp kbr kda kdb kdk kdl kdo kdp kdr kkb kkk kkl kkn kkp kkr kl- kla klb kld klo klr kn- kna knd knk knl knn kno knp knr koa kob kod kok kol kon koo kop kor kpa kpd kpk kpl kpn kpo kpp kpr kra krd krk krl krn kro krp krr l-p la- laa lab lad lak lal lan lao lap lar lba lbb lbd lbk lbl lbo lbp lbr lda ldb ldd ldk ldl ldn ldo ldp ldr lka lkb lkl lkp lkr lla llb lld llk lll lln llo llp llr lna lnb lnd lnk lnl lnn lno lnp lnr loa lob lod lok lol lon loo lop lor lpa lpb lpd lpk lpl lpn lpo lpp lpr lra lrb lrd lrk lrn lro lrp lrr naa nab nad nak nal nan nao nap nar nba nbb nbd nbk nbl nbn nbo nbp nbr nda ndb ndd ndk ndl ndn ndo ndp ndr nka nkk nkn nko nkp nkr nla nlb nld nlk nll nln nlo nlp nlr nna nnb nnk nnl nnn nno nnp no- noa nob nod nok nol non noo nop nor npa npb npd npl npn npo npp npr nra nrb nrd nrk nrl nrn nro nrp nrr oaa oab oad oak oal oan oao oap oar ob- oba obb obd obk obl obn obo obp obr oda odb odd odl odn odo odp odr oka okb okd okk okl oko okp okr ola olb old olk oll oln olo olp on- ona onb ond onk onl onn ono onp onr oo- ooa oob ood ook ool oon ooo oop oor op- opa opb opd opk opl opn opo opp opr or- ora orb ord ork orl orn oro orp orr p-p paa pab pad pak pal pan pao pap par pba pbb pbd pbk pbl pbn pbo pbp pbr pda pdb pdd pdk pdl pdn pdo pdp pdr pka pkb pkd pkl pkn pko pkp pkr pla plb pld plk pll pln plo plp plr pn- pna pnb pnd pnk pnl pnn pno pnp pnr poa pob pod pok pol pon poo pop por ppa ppb ppd ppk ppl ppn ppo ppp ppr pra prb prd prk prl prn pro prp prr ra- raa rab rad rak ral ran rao rap rar rba rbb rbd rbk rbl rbn rbo rbp rbr rda rdb rdd rdl rdn rdo rdp rdr rkb rkk rko rkp rla rld rll rln rlo rlp rlr rna rnb rnd rnn rno rnp rnr roa rob rod rok rol ron roo rop ror rpa rpb rpd rpk rpl rpn rpo rpp rpr rra rrb rrd rrk rrl rrn rrp rrr