-al -ol a-a a-b a-i a-t a-z aaa aab aai aal aao aat aaz ab- aba abb abi abl abo abt abz ai- aia aib aii ail aio ait aiz al- ala alb ali all alo alt alz aoa aob aoi aol aoo aot at- ata atb ati atl ato att atz az- aza azb azi azo azt azz baa bab bai bal bao bat baz bba bbb bbi bbl bbo bbt bi- bia bib bii bil bio bit biz bla blb bli bll blo blt blz boa bob boi bol boo bot boz bta btb bti btl bto btt btz bza bzo bzz ia- iaa iab iai ial iao iat iaz iba ibb ibi ibl ibo ibt ibz iia iib iii iil iio iit il- ila ilb ili ill ilo ilt ilz io- ioa iob ioi iol ioo iot ita itb iti itl ito itt itz iza izi izo izz la- laa lab lai lal lao lat laz lba lbb lbi lbl lbo lbt lia lib lii lil lio lit liz lla llb lli lll llo llt llz loa lob loi lol loo lot loz lta ltb lti ltl lto ltt ltz lzi lzo o-i oaa oab oai oal oao oat ob- oba obb obi obl obo obt oia oib oii oil oio oit oiz ola olb oli oll olo olt oo- ooa oob ooi ool ooo oot ot- ota otb oti otl oto ott otz oza ozo ozt ozz taa tab tai tal tao tat taz tba tbb tbi tbl tbo tbt tbz tia tib tii til tio tit tiz tla tli tll tlo tlt tlz to- toa tob toi tol too tot toz tta ttb tti ttl tto ttt tza zaa zab zai zao zat zaz zbb zbl zbt zia zib zil zio zit ziz zla zlt zo- zoa zob zoi zol zoo zot zta ztl zzt zzz