-al -ol a-a a-b aaa aab aad aal aan aao aar aas aau ab- aba abb abd abl abn abo abr abs abu ad- ada adb add adl adn ado adr ads adu al- ala alb ald all aln alo alr als alu an- ana anb and anl ann ano anr ans anu aoa aob aod aol aon aoo aor aos aou ar- ara arb ard arl arn aro arr ars aru as- asa asb asd asl asn aso asr ass asu au- aua aub aud aul aun auo aur aus b-u baa bab bad bal ban bao bar bas bau bba bbb bbd bbl bbn bbo bbr bbs bbu bda bdb bdd bdl bdo bdr bds bdu bla blb bld bll bln blo blr bls blu bna bnb bnd bnl bnn bno bnr bns bnu boa bob bod bol bon boo bor bos bou bra brb brd brl brn bro brr brs bru bsa bsb bsd bsl bsn bso bsr bss bsu bua bub bud bul bun buo bur bus buu daa dab dad dal dan dao dar das dau dba dbb dbd dbl dbn dbo dbr dbs dbu dda ddb ddd ddl ddn ddo ddr dds ddu dl- dla dlb dld dll dlo dlr dls dlu dna dnb dnd dnl dnn dno dnr dns doa dob dod dol don doo dor dos dou dra drb drd drl drn dro drr drs dru dsa dsb dsd dsl dsn dso dsr dss dsu dua dub dud dul dun duo dur dus la- laa lab lad lal lan lao lar las lau lba lbb lbd lbl lbo lbr lbs lbu lda ldb ldd ldl ldn ldo ldr lds ldu lla llb lld lll lln llo llr lls llu lna lnb lnd lnl lnn lno lnr lns lnu loa lob lod lol lon loo lor los lou lra lrb lrd lrn lro lrr lrs lru lsa lsb lsd lsl lsn lso lsr lss lsu lua lub lud lul lun luo lur lus luu naa nab nad nal nan nao nar nas nau nba nbb nbd nbl nbn nbo nbr nbs nbu nda ndb ndd ndl ndn ndo ndr nds ndu nla nlb nld nll nln nlo nlr nls nlu nna nnb nnl nnn nno nns nnu no- noa nob nod nol non noo nor nos nou nra nrb nrd nrl nrn nro nrr nrs nru nsa nsb nsd nsl nsn nso nsr nss nsu nua nub nud nul nun nuo nur nus nuu oaa oab oad oal oan oao oar oas oau ob- oba obb obd obl obn obo obr obs obu oda odb odd odl odn odo odr ods odu ola olb old oll oln olo ols olu on- ona onb ond onl onn ono onr ons onu oo- ooa oob ood ool oon ooo oor oos or- ora orb ord orl orn oro orr ors oru os- osa osb osd osl osn oso osr oss osu ou- oua oud oul oun ouo our ous ra- raa rab rad ral ran rao rar ras rau rba rbb rbd rbl rbn rbo rbr rbs rbu rda rdb rdd rdl rdn rdo rdr rds rdu rla rld rll rln rlo rlr rls rlu rna rnb rnd rnn rno rnr rns rnu roa rob rod rol ron roo ror ros rou rra rrb rrd rrl rrn rrr rrs rru rsa rsb rsd rsl rsn rso rsr rss rsu rua rub rud run ruo rur rus ruu saa sab sad sal san sao sar sas sau sba sbb sbd sbl sbn sbo sbr sbs sbu sda sdb sdd sdl sdn sdo sdr sds sdu sla slb sld sll sln slo slr sls slu sna snb snd snl snn sno snr sns snu soa sob sod sol son soo sor sos sou sr- sra srb srd srl srn sro srr srs ss- ssa ssb ssd ssl ssn sso ssr sss ssu sua sub sud sul sun suo sur sus suu ua- uaa uab uad ual uan uao uar uas uau uba ubb ubl ubn ubo ubr ubs ubu uda udb udd udl udn udo udr uds udu ula ulb uld ull uln ulo ulr uls ulu un- una unb und unl unn uno unr uns unu uoa uob uod uol uon uoo uor uos ur- ura urb urd url urn uro urr urs uru usa usb usd usl usn uso usr uss usu uua uun uur uus uuu