-al -ol a-a a-b a-i a-t aaa aab aai aal aao aat aau ab- aba abb abi abl abo abt abu ai- aia aib aii ail aio ait aiu al- ala alb ali all alo alt alu aoa aob aoi aol aoo aot aou at- ata atb ati atl ato att atu au- aua aub aui aul auo aut b-u baa bab bai bal bao bat bau bba bbb bbi bbl bbo bbt bbu bi- bia bib bii bil bio bit biu bla blb bli bll blo blt blu boa bob boi bol boo bot bou bta btb bti btl bto btt btu bua bub bui bul buo but buu ia- iaa iab iai ial iao iat iau iba ibb ibi ibl ibo ibt ibu iia iib iii iil iio iit iiu il- ila ilb ili ill ilo ilt ilu io- ioa iob ioi iol ioo iot iou ita itb iti itl ito itt itu iu- iua iub iui iut la- laa lab lai lal lao lat lau lba lbb lbi lbl lbo lbt lbu lia lib lii lil lio lit liu lla llb lli lll llo llt llu loa lob loi lol loo lot lou lta ltb lti ltl lto ltt ltu lua lub lui lul luo lut luu o-i oaa oab oai oal oao oat oau ob- oba obb obi obl obo obt obu oia oib oii oil oio oit oiu ola olb oli oll olo olt olu oo- ooa oob ooi ool ooo oot ot- ota otb oti otl oto ott otu ou- oua oui oul ouo out taa tab tai tal tao tat tau tba tbb tbi tbl tbo tbt tbu tia tib tii til tio tit tiu tla tli tll tlo tlt tlu to- toa tob toi tol too tot tou tta ttb tti ttl tto ttt ttu tua tub tui tul tuo tut tuu ua- uaa uab uai ual uao uat uau uba ubb ubi ubl ubo ubt ubu uia uib uii uil uio uit uiu ula ulb uli ull ulo ult ulu uoa uob uol uoo uot uta utb uti utl uto utt utu uua uut uuu