-al -ol a-a a-b a-t a-z aaa aab aal aao aat aau aaz ab- aba abb abl abo abt abu abz al- ala alb all alo alt alu alz aoa aob aol aoo aot aou at- ata atb atl ato att atu atz au- aua aub aul auo aut auz az- aza azb azo azt azu azz b-u baa bab bal bao bat bau baz bba bbb bbl bbo bbt bbu bla blb bll blo blt blu blz boa bob bol boo bot bou boz bta btb btl bto btt btu btz bua bub bul buo but buu buz bza bzo bzu bzz la- laa lab lal lao lat lau laz lba lbb lbl lbo lbt lbu lla llb lll llo llt llu llz loa lob lol loo lot lou loz lta ltb ltl lto ltt ltu ltz lua lub lul luo lut luu luz lzo lzu oaa oab oal oao oat oau ob- oba obb obl obo obt obu ola olb oll olo olt olu oo- ooa oob ool ooo oot ot- ota otb otl oto ott otu otz ou- oua oul ouo out oza ozo ozt ozu ozz taa tab tal tao tat tau taz tba tbb tbl tbo tbt tbu tbz tla tll tlo tlt tlu tlz to- toa tob tol too tot tou toz tta ttb ttl tto ttt ttu tua tub tul tuo tut tuu tuz tza tzu ua- uaa uab ual uao uat uau uaz uba ubb ubl ubo ubt ubu ula ulb ull ulo ult ulu uoa uob uol uoo uot uta utb utl uto utt utu utz uua uut uuu uza uzb uzo uzu zaa zab zao zat zaz zbb zbl zbt zla zlt zo- zoa zob zol zoo zot zou zta ztl zub zul zut zuz zzt zzz