-al -ol -th a-a a-b a-c a-t aaa aab aac aah aak aal aao aas aat ab- aba abb abc abh abk abl abo abs abt ac- aca acb acc ach ack acl aco acs act aha ahb ahc ahh ahk ahl aho ahs aht aka akb akc akh akk akl ako aks al- ala alb alc alh alk all alo als alt aoa aob aoc aoh aok aol aoo aos aot as- asa asb asc ash ask asl aso ass ast at- ata atb atc ath atl ato ats att baa bab bac bah bak bal bao bas bat bba bbb bbc bbh bbk bbl bbo bbs bbt bca bcb bcc bch bck bcl bco bcs bct bha bhb bhc bhh bhk bhl bho bhs bht bka bkb bkc bkk bkl bko bks bkt bla blb blc blh blk bll blo bls blt boa bob boc boh bok bol boo bos bot bsa bsb bsc bsh bsk bsl bso bss bst bta btb btc bth btk btl bto bts btt c-- caa cab cac cah cak cal cao cas cat cba cbb cbc cbh cbk cbl cbo cbs cbt cca ccb ccc cch cck ccl cco ccs cct ch- cha chb chc chh chk chl cho chs cht cka ckb ckc ckh cko cks ckt cl- cla clb clc clh clk cll clo cls clt co- coa cob coc coh cok col coo cos cot csa csb csc csh csk csl cso css cst cta ctb ctc cth ctk ctl cto cts ctt haa hab hac hah hak hal hao has hat hba hbb hbc hbh hbk hbl hbo hbs hbt hca hcb hcc hch hck hcl hco hcs hct hha hhb hhc hhh hhk hhl hho hhs hht hka hkb hkh hkk hkl hko hks hkt hla hlb hlc hlh hll hlo hls hlt hoa hob hoc hoh hok hol hoo hos hot hsa hsb hsc hsh hsk hsl hss hst hta htb htc hth htk htl hto hts htt k-t ka- kaa kab kac kah kak kal kao kas kat kba kbb kbc kbh kbk kbl kbo kbs kca kcb kcc kch kck kcl kcs kct kha khh khk kho khs kkb kkc kkh kkk kkl kks kkt kl- kla klb klc klh klo kls klt koa kob koc koh kok kol koo kos kot ksa ksb ksc ksh ksk ksl kso kss kst kta ktb ktc kth ktk ktl kto kts ktt la- laa lab lac lah lak lal lao las lat lba lbb lbc lbh lbk lbl lbo lbs lbt lca lcb lcc lch lck lcl lco lcs lct lha lhb lhc lhh lhk lho lhs lht lka lkb lkh lkl lks lkt lla llb llc llk lll llo lls llt loa lob loc loh lok lol loo los lot lsa lsb lsc lsh lsk lsl lso lss lst lta ltb ltc lth ltk ltl lto lts ltt oaa oab oac oah oak oal oao oas oat ob- oba obb obc obh obk obl obo obs obt oc- oca ocb occ och ock ocl oco ocs oct oha ohc ohh ohl oho ohs oht oka okb okc okk okl oko oks ola olb olc olk oll olo ols olt oo- ooa oob ooc ooh ook ool ooo oos oot os- osa osb osc osh osk osl oso oss ost ot- ota otb otc oth otk otl oto ots ott saa sab sac sah sak sal sao sas sat sba sbb sbc sbh sbk sbl sbo sbs sbt sca scb scc sch sck scl sco scs sct sh- sha shb shc shh shk shl sho shs sht sk- ska skb skc skh skk skl sko sks skt sla slb slc slh slk sll slo sls slt soa sob soc soh sok sol soo sos sot ss- ssa ssb ssc ssh ssk ssl sso sss sst sta stb stc sth stk stl sto sts stt taa tab tac tah tak tal tao tas tat tba tbb tbc tbh tbk tbl tbo tbs tbt tca tcb tcc tch tck tcl tco tcs tct th- tha thb thc thh thk thl tho ths tht tka tkb tkc tkk tkl tko tks tkt tla tlc tlh tlk tll tlo tls tlt to- toa tob toc toh tok tol too tos tot tsa tsb tsc tsh tsk tsl tso tss tst tta ttb ttc tth ttk ttl tto tts ttt