-al a-a a-b a-t aaa aab aad aaf aal aam aar aat ab- aba abb abd abf abl abm abr abt ad- ada adb add adf adl adm adr adt af- afa afb afd aff afl afm afr aft al- ala alb ald alf all alm alr alt ama amb amd amf aml amm amr amt ar- ara arb ard arf arl arm arr art at- ata atb atd atf atl atm atr att baa bab bad baf bal bam bar bat bba bbb bbd bbf bbl bbm bbr bbt bda bdb bdd bdf bdl bdm bdr bdt bfa bfb bfd bff bfl bfm bfr bft bla blb bld blf bll blm blr blt bma bmb bmd bmf bml bmm bmr bmt bra brb brd brf brl brm brr brt bta btb btd btf btl btm btr btt daa dab dad daf dal dam dar dat dba dbb dbd dbf dbl dbm dbr dbt dda ddb ddd ddf ddl ddm ddr ddt dfa dfb dfd dff dfl dfm dfr dft dl- dla dlb dld dlf dll dlm dlr dlt dma dmb dmd dmf dml dmm dmr dmt dra drb drd drl drm drr drt dta dtb dtd dtf dtl dtm dtr dtt faa fab fad faf fal fam far fat fba fbb fbd fbf fbl fbm fbr fbt fda fdb fdd fdf fdl fdm fdr fdt ffa ffd fff ffl ffm ffr fft fla flb fld flf fll flm flr flt fma fmb fmd fmf fml fmm fmr fmt fra frb frd frf frl frm frr frt fta ftb ftd ftf ftl ftm ftr ftt la- laa lab lad laf lal lam lar lat lba lbb lbd lbf lbl lbm lbr lbt lda ldb ldd ldf ldl ldm ldr ldt lfa lfb lfd lff lfl lfm lfr lft lla llb lld llf lll llm llr llt lma lmb lmd lmf lml lmm lmr lmt lra lrb lrd lrf lrm lrr lrt lta ltb ltd ltf ltl ltm ltr ltt m-f m-r maa mab mad maf mal mam mar mat mba mbb mbd mbf mbl mbm mbr mbt mda mdb mdd mdf mdl mdm mdr mdt mfa mfb mfd mff mfl mfm mfr mft mla mlb mld mlf mll mlm mlr mlt mma mmb mmd mmf mml mmm mmr mmt mra mrb mrd mrf mrl mrm mrr mrt mta mtb mtd mtf mtl mtm mtr mtt ra- raa rab rad raf ral ram rar rat rba rbb rbd rbf rbl rbm rbr rbt rda rdb rdd rdf rdl rdm rdr rdt rfa rfb rfd rff rfl rfm rfr rft rla rld rlf rll rlm rlr rlt rma rmb rmd rmf rml rmm rmr rmt rra rrb rrd rrf rrl rrm rrr rrt rta rtb rtd rtf rtl rtm rtr rtt taa tab tad taf tal tam tar tat tba tbb tbd tbf tbl tbm tbr tbt tda tdb tdd tdf tdl tdm tdr tdt tfa tfb tfd tff tfl tfm tfr tft tla tld tlf tll tlm tlr tlt tma tmb tmd tmf tml tmm tmr tmt tra trb trd trf trl trm trr trt tta ttb ttd ttf ttl ttm ttr ttt