-al a-a a-b a-t aaa aab aad aal aam aas aat ab- aba abb abd abl abm abs abt ad- ada adb add adl adm ads adt al- ala alb ald all alm als alt ama amb amd aml amm ams amt as- asa asb asd asl asm ass ast at- ata atb atd atl atm ats att baa bab bad bal bam bas bat bba bbb bbd bbl bbm bbs bbt bda bdb bdd bdl bdm bds bdt bla blb bld bll blm bls blt bma bmb bmd bml bmm bms bmt bsa bsb bsd bsl bsm bss bst bta btb btd btl btm bts btt daa dab dad dal dam das dat dba dbb dbd dbl dbm dbs dbt dda ddb ddd ddl ddm dds ddt dl- dla dlb dld dll dlm dls dlt dma dmb dmd dml dmm dms dmt dsa dsb dsd dsl dsm dss dst dta dtb dtd dtl dtm dts dtt la- laa lab lad lal lam las lat lba lbb lbd lbl lbm lbs lbt lda ldb ldd ldl ldm lds ldt lla llb lld lll llm lls llt lma lmb lmd lml lmm lms lmt lsa lsb lsd lsl lsm lss lst lta ltb ltd ltl ltm lts ltt maa mab mad mal mam mas mat mba mbb mbd mbl mbm mbs mbt mda mdb mdd mdl mdm mds mdt mla mlb mld mll mlm mls mlt mma mmb mmd mml mmm mms mmt msa msb msd msl msm mss mst mta mtb mtd mtl mtm mts mtt saa sab sad sal sam sas sat sba sbb sbd sbl sbm sbs sbt sda sdb sdd sdl sdm sds sdt sla slb sld sll slm sls slt sma smb smd sml smm sms smt ss- ssa ssb ssd ssl ssm sss sst sta stb std stl stm sts stt taa tab tad tal tam tas tat tba tbb tbd tbl tbm tbs tbt tda tdb tdd tdl tdm tds tdt tla tld tll tlm tls tlt tma tmb tmd tml tmm tms tmt tsa tsb tsd tsl tsm tss tst tta ttb ttd ttl ttm tts ttt