-al -ol a-a a-b a-t aaa aab aal aam aao aat ab- aba abb abl abm abo abt al- ala alb all alm alo alt ama amb aml amm amo amt aoa aob aol aom aoo aot at- ata atb atl atm ato att baa bab bal bam bao bat bba bbb bbl bbm bbo bbt bla blb bll blm blo blt bma bmb bml bmm bmo bmt boa bob bol bom boo bot bta btb btl btm bto btt la- laa lab lal lam lao lat lba lbb lbl lbm lbo lbt lla llb lll llm llo llt lma lmb lml lmm lmo lmt loa lob lol lom loo lot lta ltb ltl ltm lto ltt m-o maa mab mal mam mao mat mba mbb mbl mbm mbo mbt mla mlb mll mlm mlo mlt mma mmb mml mmm mmo mmt moa mob mol mom moo mot mta mtb mtl mtm mto mtt oaa oab oal oam oao oat ob- oba obb obl obm obo obt ola olb oll olm olo olt om- oma omb oml omm omo omt oo- ooa oob ool oom ooo oot ot- ota otb otl otm oto ott taa tab tal tam tao tat tba tbb tbl tbm tbo tbt tla tll tlm tlo tlt tma tmb tml tmm tmo tmt to- toa tob tol tom too tot tta ttb ttl ttm tto ttt