-er -ey a-a a-b a-i aaa aab aad aae aag aai aar aay ab- aba abb abd abe abg abi abr aby ad- ada adb add ade adg adi adr ady aea aeb aed aee aeg aei aer aey ag- aga agb agd age agg agi agr agy ai- aia aib aid aie aig aii air aiy ar- ara arb ard are arg ari arr ary ay- aya ayd aye ayi ayr baa bab bad bae bag bai bar bay bba bbb bbd bbe bbg bbi bbr bby bda bdb bdd bde bdg bdi bdr bdy be- bea beb bed bee beg bei ber bey bga bgb bgd bge bgg bgi bgr bi- bia bib bid bie big bii bir biy bra brb brd bre brg bri brr bry by- bya byd bye byg byi byr daa dab dad dae dag dai dar day dba dbb dbd dbe dbg dbi dbr dby dda ddb ddd dde ddg ddi ddr ddy de- dea deb ded dee deg dei der dey dga dgd dge dgg dgi dgr di- dia dib did die dig dii dir diy dra drb drd dre drg dri drr dry dy- dya dyb dyd dye dyr dyy eaa eab ead eae eag eai ear eba ebb ebd ebe ebg ebi ebr eby ed- eda edb edd ede edg edi edr edy eea eeb eed eee eeg eer eey ega egb egd ege egg egi egr egy eia eib eid eie eig eii eir era erb erd ere erg eri err ery eya eyd eye eyr g-d gaa gab gad gae gag gai gar gay gba gbd gbe gbg gbi gbr gby gda gdb gdd gde gdi gdr ge- gea geb ged gee geg gei ger gey gga ggb ggd ggg ggi ggr gia gib gid gie gig gii gir giy gra grb grd gre grg gri grr gry gy- gya gyb gyd gye gyr i-d ia- iaa iab iad iae iag iai iar iba ibb ibd ibe ibg ibi ibr iby ida idb idd ide idg idi idr idy ie- iea ied iee ieg iei ier iey iga igb igd ige igg igi igr igy iia iib iid iie iii iir ir- ira irb ird ire irg iri irr iry iya iye iyr iyy ra- raa rab rad rae rag rai rar ray rba rbb rbd rbe rbg rbi rbr rda rdb rdd rde rdg rdi rdr rdy re- rea reb red ree reg rei rer rey rga rgb rgd rge rgg rgi rgr ria rib rid rie rig rii rir riy rra rrb rrd rrg rri rrr ry- rya ryd rye ryg ryr ryy yaa yab yad yae yag yai yar yay ybe ybg ybi ybr yby yda yde ydg ydy yea yeb yed yee yeg yei yer yey yga yid yie yig yii yir yra yre yrg yyb yye yyg yyy