-al -ol a-a a-b a-t aaa aab aak aal aao aap aas aat ab- aba abb abk abl abo abp abs abt aka akb akk akl ako akp aks al- ala alb alk all alo alp als alt aoa aob aok aol aoo aop aos aot ap- apa apb apk apl apo app aps apt as- asa asb ask asl aso asp ass ast at- ata atb atl ato atp ats att b-p baa bab bak bal bao bap bas bat bba bbb bbk bbl bbo bbp bbs bbt bka bkb bkk bkl bko bkp bks bkt bla blb blk bll blo blp bls blt boa bob bok bol boo bop bos bot bpa bpb bpl bpo bpp bps bpt bsa bsb bsk bsl bso bsp bss bst bta btb btk btl bto btp bts btt k-t ka- kaa kab kak kal kao kap kas kat kba kbb kbk kbl kbo kbp kbs kkb kkk kkl kkp kks kkt kl- kla klb klo kls klt koa kob kok kol koo kop kos kot kpa kpk kpl kpo kpp kps kpt ksa ksb ksk ksl kso ksp kss kst kta ktb ktk ktl kto ktp kts ktt l-p la- laa lab lak lal lao lap las lat lba lbb lbk lbl lbo lbp lbs lbt lka lkb lkl lkp lks lkt lla llb llk lll llo llp lls llt loa lob lok lol loo lop los lot lpa lpb lpk lpl lpo lpp lps lpt lsa lsb lsk lsl lso lsp lss lst lta ltb ltk ltl lto ltp lts ltt oaa oab oak oal oao oap oas oat ob- oba obb obk obl obo obp obs obt oka okb okk okl oko okp oks ola olb olk oll olo olp ols olt oo- ooa oob ook ool ooo oop oos oot op- opa opb opk opl opo opp ops opt os- osa osb osk osl oso osp oss ost ot- ota otb otk otl oto otp ots ott p-p paa pab pak pal pao pap pas pat pba pbb pbk pbl pbo pbp pbs pbt pka pkb pkl pko pkp pks pkt pla plb plk pll plo plp pls plt poa pob pok pol poo pop pos pot ppa ppb ppk ppl ppo ppp pps ppt ps- psa psb psk psl pso psp pss pst pt- pta ptb ptk ptl pto ptp pts ptt saa sab sak sal sao sap sas sat sba sbb sbk sbl sbo sbp sbs sbt sk- ska skb skk skl sko skp sks skt sla slb slk sll slo slp sls slt soa sob sok sol soo sop sos sot spa spb spk spl spo spp sps spt ss- ssa ssb ssk ssl sso ssp sss sst sta stb stk stl sto stp sts stt taa tab tak tal tao tap tas tat tba tbb tbk tbl tbo tbp tbs tbt tka tkb tkk tkl tko tkp tks tkt tla tlk tll tlo tlp tls tlt to- toa tob tok tol too top tos tot tpa tpb tpk tpl tpo tpp tps tpt tsa tsb tsk tsl tso tsp tss tst tta ttb ttk ttl tto ttp tts ttt