-al -ol a-a a-b a-t aaa aab aad aak aal aan aao aas aat ab- aba abb abd abk abl abn abo abs abt ad- ada adb add adk adl adn ado ads adt aka akb akd akk akl akn ako aks al- ala alb ald alk all aln alo als alt an- ana anb and ank anl ann ano ans ant aoa aob aod aok aol aon aoo aos aot as- asa asb asd ask asl asn aso ass ast at- ata atb atd atl atn ato ats att baa bab bad bak bal ban bao bas bat bba bbb bbd bbk bbl bbn bbo bbs bbt bda bdb bdd bdk bdl bdo bds bdt bka bkb bkk bkl bkn bko bks bkt bla blb bld blk bll bln blo bls blt bna bnb bnd bnk bnl bnn bno bns bnt boa bob bod bok bol bon boo bos bot bsa bsb bsd bsk bsl bsn bso bss bst bta btb btd btk btl btn bto bts btt daa dab dad dak dal dan dao das dat dba dbb dbd dbk dbl dbn dbo dbs dbt dda ddb ddd ddk ddl ddn ddo dds ddt dka dkb dkk dkl dko dks dkt dl- dla dlb dld dlk dll dlo dls dlt dna dnb dnd dnk dnl dnn dno dns dnt doa dob dod dok dol don doo dos dot dsa dsb dsd dsk dsl dsn dso dss dst dta dtb dtd dtk dtl dtn dto dts dtt k-t ka- kaa kab kad kak kal kan kao kas kat kba kbb kbd kbk kbl kbn kbo kbs kda kdb kdk kdl kdo kds kdt kkb kkk kkl kkn kks kkt kl- kla klb kld klo kls klt kn- kna knd knk knl knn kno knt koa kob kod kok kol kon koo kos kot ksa ksb ksd ksk ksl ksn kso kss kst kta ktb ktk ktl ktn kto kts ktt la- laa lab lad lak lal lan lao las lat lba lbb lbd lbk lbl lbo lbs lbt lda ldb ldd ldk ldl ldn ldo lds ldt lka lkb lkl lks lkt lla llb lld llk lll lln llo lls llt lna lnb lnd lnk lnl lnn lno lns lnt loa lob lod lok lol lon loo los lot lsa lsb lsd lsk lsl lsn lso lss lst lta ltb ltd ltk ltl lto lts ltt naa nab nad nak nal nan nao nas nat nba nbb nbd nbk nbl nbn nbo nbs nbt nda ndb ndd ndk ndl ndn ndo nds ndt nka nkk nkn nko nks nkt nla nlb nld nlk nll nln nlo nls nlt nna nnb nnk nnl nnn nno nns nnt no- noa nob nod nok nol non noo nos not nsa nsb nsd nsk nsl nsn nso nss nst nta ntb ntd ntk ntn nto nts ntt oaa oab oad oak oal oan oao oas oat ob- oba obb obd obk obl obn obo obs obt oda odb odd odl odn odo ods odt oka okb okd okk okl oko oks ola olb old olk oll oln olo ols olt on- ona onb ond onk onl onn ono ons ont oo- ooa oob ood ook ool oon ooo oos oot os- osa osb osd osk osl osn oso oss ost ot- ota otb otd otk otl otn oto ots ott saa sab sad sak sal san sao sas sat sba sbb sbd sbk sbl sbn sbo sbs sbt sda sdb sdd sdk sdl sdn sdo sds sdt sk- ska skb skd skk skl sko sks skt sla slb sld slk sll sln slo sls slt sna snb snd snk snl snn sno sns snt soa sob sod sok sol son soo sos sot ss- ssa ssb ssd ssk ssl ssn sso sss sst sta stb std stk stl stn sto sts stt taa tab tad tak tal tan tao tas tat tba tbb tbd tbk tbl tbn tbo tbs tbt tda tdb tdd tdk tdl tdn tdo tds tdt tka tkb tkk tkl tko tks tkt tla tld tlk tll tln tlo tls tlt tna tnb tnd tnk tnl tnn tno tns tnt to- toa tob tod tok tol ton too tos tot tsa tsb tsd tsk tsl tsn tso tss tst tta ttb ttd ttk ttl ttn tto tts ttt