-al a-a a-b a-i aaa aab aaf aai aal aau aax ab- aba abb abf abi abl abu abx af- afa afb aff afi afl afu afx ai- aia aib aif aii ail aiu aix al- ala alb alf ali all alu alx au- aua aub auf aui aul aux ax- axa axi axl axx b-u baa bab baf bai bal bau bax bba bbb bbf bbi bbl bbu bbx bfa bfb bff bfi bfl bfu bfx bi- bia bib bif bii bil biu bix bla blb blf bli bll blu blx bua bub buf bui bul buu bux bxb bxi bxl bxx faa fab faf fai fal fau fax fba fbb fbf fbi fbl fbu fbx ffa fff ffi ffl ffu ffx fia fib fif fii fil fiu fix fla flb flf fli fll flu flx fua fub fuf fui ful fuu fux fxi fxu fxx i-f ia- iaa iab iaf iai ial iau iba ibb ibf ibi ibl ibu ibx ifa ifb iff ifi ifl ifu ifx iia iib iif iii iil iiu iix il- ila ilb ilf ili ill ilu ilx iu- iua iub iui ixi ixl la- laa lab laf lai lal lau lax lba lbb lbf lbi lbl lbu lbx lfa lfb lff lfi lfl lfu lfx lia lib lif lii lil liu lix lla llb llf lli lll llu lua lub luf lui lul luu lux lxi lxx ua- uaa uab uaf uai ual uau uba ubb ubf ubi ubl ubu ubx ufa uff ufi ufl ufu ufx uia uib uif uii uil uiu ula ulb ulf uli ull ulu uua uuu uxb uxf uxu xaa xaf xal xau xbl xbx xfa xfl xfx xia xii xiu xix xla xlb xlf xli xui xul xxi xxl xxx