-al -ol a-a a-b a-t aaa aab aad aal aam aao aat ab- aba abb abd abl abm abo abt ad- ada adb add adl adm ado adt al- ala alb ald all alm alo alt ama amb amd aml amm amo amt aoa aob aod aol aom aoo aot at- ata atb atd atl atm ato att baa bab bad bal bam bao bat bba bbb bbd bbl bbm bbo bbt bda bdb bdd bdl bdm bdo bdt bla blb bld bll blm blo blt bma bmb bmd bml bmm bmo bmt boa bob bod bol bom boo bot bta btb btd btl btm bto btt daa dab dad dal dam dao dat dba dbb dbd dbl dbm dbo dbt dda ddb ddd ddl ddm ddo ddt dl- dla dlb dld dll dlm dlo dlt dma dmb dmd dml dmm dmo dmt doa dob dod dol dom doo dot dta dtb dtd dtl dtm dto dtt la- laa lab lad lal lam lao lat lba lbb lbd lbl lbm lbo lbt lda ldb ldd ldl ldm ldo ldt lla llb lld lll llm llo llt lma lmb lmd lml lmm lmo lmt loa lob lod lol lom loo lot lta ltb ltd ltl ltm lto ltt m-o maa mab mad mal mam mao mat mba mbb mbd mbl mbm mbo mbt mda mdb mdd mdl mdm mdo mdt mla mlb mld mll mlm mlo mlt mma mmb mmd mml mmm mmo mmt moa mob mod mol mom moo mot mta mtb mtd mtl mtm mto mtt oaa oab oad oal oam oao oat ob- oba obb obd obl obm obo obt oda odb odd odl odm odo odt ola olb old oll olm olo olt om- oma omb omd oml omm omo omt oo- ooa oob ood ool oom ooo oot ot- ota otb otd otl otm oto ott taa tab tad tal tam tao tat tba tbb tbd tbl tbm tbo tbt tda tdb tdd tdl tdm tdo tdt tla tld tll tlm tlo tlt tma tmb tmd tml tmm tmo tmt to- toa tob tod tol tom too tot tta ttb ttd ttl ttm tto ttt