-al -ol a-a a-b a-t aaa aab aal aam aao aar aas aat ab- aba abb abl abm abo abr abs abt al- ala alb all alm alo alr als alt ama amb aml amm amo amr ams amt aoa aob aol aom aoo aor aos aot ar- ara arb arl arm aro arr ars art as- asa asb asl asm aso asr ass ast at- ata atb atl atm ato atr ats att baa bab bal bam bao bar bas bat bba bbb bbl bbm bbo bbr bbs bbt bla blb bll blm blo blr bls blt bma bmb bml bmm bmo bmr bms bmt boa bob bol bom boo bor bos bot bra brb brl brm bro brr brs brt bsa bsb bsl bsm bso bsr bss bst bta btb btl btm bto btr bts btt la- laa lab lal lam lao lar las lat lba lbb lbl lbm lbo lbr lbs lbt lla llb lll llm llo llr lls llt lma lmb lml lmm lmo lmr lms lmt loa lob lol lom loo lor los lot lra lrb lrm lro lrr lrs lrt lsa lsb lsl lsm lso lsr lss lst lta ltb ltl ltm lto ltr lts ltt m-o m-r maa mab mal mam mao mar mas mat mba mbb mbl mbm mbo mbr mbs mbt mla mlb mll mlm mlo mlr mls mlt mma mmb mml mmm mmo mmr mms mmt moa mob mol mom moo mor mos mot mra mrb mrl mrm mro mrr mrs mrt msa msb msl msm mso msr mss mst mta mtb mtl mtm mto mtr mts mtt oaa oab oal oam oao oar oas oat ob- oba obb obl obm obo obr obs obt ola olb oll olm olo ols olt om- oma omb oml omm omo omr oms omt oo- ooa oob ool oom ooo oor oos oot or- ora orb orl orm oro orr ors ort os- osa osb osl osm oso osr oss ost ot- ota otb otl otm oto otr ots ott ra- raa rab ral ram rao rar ras rat rba rbb rbl rbm rbo rbr rbs rbt rla rll rlm rlo rlr rls rlt rma rmb rml rmm rmo rmr rms rmt roa rob rol rom roo ror ros rot rra rrb rrl rrm rrr rrs rrt rsa rsb rsl rsm rso rsr rss rst rta rtb rtl rtm rto rtr rts rtt saa sab sal sam sao sar sas sat sba sbb sbl sbm sbo sbr sbs sbt sla slb sll slm slo slr sls slt sma smb sml smm smo smr sms smt soa sob sol som soo sor sos sot sr- sra srb srl srm sro srr srs srt ss- ssa ssb ssl ssm sso ssr sss sst sta stb stl stm sto str sts stt taa tab tal tam tao tar tas tat tba tbb tbl tbm tbo tbr tbs tbt tla tll tlm tlo tlr tls tlt tma tmb tml tmm tmo tmr tms tmt to- toa tob tol tom too tor tos tot tra trb trl trm tro trr trs trt tsa tsb tsl tsm tso tsr tss tst tta ttb ttl ttm tto ttr tts ttt