-al -ly a-a a-b a-i a-t aaa aab aaf aai aal aat aax aay ab- aba abb abf abi abl abt abx aby af- afa afb aff afi afl aft afx afy ai- aia aib aif aii ail ait aix aiy al- ala alb alf ali all alt alx aly at- ata atb atf ati atl att atx ax- axa axi axl axt axx ay- aya ayf ayi ayl ayt ayx baa bab baf bai bal bat bax bay bba bbb bbf bbi bbl bbt bbx bby bfa bfb bff bfi bfl bft bfx bfy bi- bia bib bif bii bil bit bix biy bla blb blf bli bll blt blx bly bta btb btf bti btl btt btx bty bxb bxi bxl bxx by- bya byf byi byl byt faa fab faf fai fal fat fax fay fba fbb fbf fbi fbl fbt fbx ffa fff ffi ffl fft ffx ffy fia fib fif fii fil fit fix fla flb flf fli fll flt flx fly fta ftb ftf fti ftl ftt ftx fty fxi fxt fxx fy- fya fyb fyi i-f ia- iaa iab iaf iai ial iat iba ibb ibf ibi ibl ibt ibx iby ifa ifb iff ifi ifl ift ifx ify iia iib iif iii iil iit iix il- ila ilb ilf ili ill ilt ilx ily ita itb itf iti itl itt itx ity ixi ixl ixy iya iyt iyy la- laa lab laf lai lal lat lax lay lba lbb lbf lbi lbl lbt lbx lfa lfb lff lfi lfl lft lfx lia lib lif lii lil lit lix lla llb llf lli lll llt lly lta ltb ltf lti ltl ltt ltx lxi lxx lya lyf lyl lyt lyx t-x taa tab taf tai tal tat tax tay tba tbb tbf tbi tbl tbt tfa tfb tff tfi tfl tft tfx tia tib tif tii til tit tix tiy tla tlf tli tll tlt tlx tta ttb ttf tti ttl ttt ttx tty txf txi txl txt tya tyf tyl tyt xaa xaf xal xat xbl xbx xfa xfl xft xfx xia xii xit xix xla xlb xlf xli xlt xtf xti xtx xty xxi xxl xxx xxy xyl xyy yaa yab yaf yai yal yat yax yay ybf ybi ybl yby yfa yff yft yif yii yit yli yll ylt yly yta ytf ytl ytt yxa yxy yyb yyf yyt yyy