-er -ey a-a a-b a-i aaa aab aad aae aai aar aav aay ab- aba abb abd abe abi abr abv aby ad- ada adb add ade adi adr adv ady aea aeb aed aee aei aer aev aey ai- aia aib aid aie aii air aiv aiy ar- ara arb ard are ari arr arv ary av- ava avb avd ave avi avr avy ay- aya ayd aye ayi ayr baa bab bad bae bai bar bav bay bba bbb bbd bbe bbi bbr bby bda bdb bdd bde bdi bdr bdv bdy be- bea beb bed bee bei ber bev bey bi- bia bib bid bie bii bir biv biy bra brb brd bre bri brr brv bry bva bvb bvd bve bvi bvr bvv by- bya byd bye byi byr daa dab dad dae dai dar dav day dba dbb dbd dbe dbi dbr dbv dby dda ddb ddd dde ddi ddr ddy de- dea deb ded dee dei der dev dey di- dia dib did die dii dir div diy dra drb drd dre dri drr drv dry dva dvb dvd dve dvi dvr dy- dya dyb dyd dye dyr dyy eaa eab ead eae eai ear eav eba ebb ebd ebe ebi ebr ebv eby ed- eda edb edd ede edi edr edy eea eeb eed eee eer eev eey eia eib eid eie eii eir eiv era erb erd ere eri err erv ery eva evb evd eve evi evr evv evy eya eyd eye eyr i-d i-v ia- iaa iab iad iae iai iar iav iba ibb ibd ibe ibi ibr ibv iby ida idb idd ide idi idr idv idy ie- iea ied iee iei ier iev iey iia iib iid iie iii iir ir- ira irb ird ire iri irr irv iry iva ivb ivd ive ivi ivr ivv ivy iya iye iyr iyy ra- raa rab rad rae rai rar rav ray rba rbb rbd rbe rbi rbr rda rdb rdd rde rdi rdr rdv rdy re- rea reb red ree rei rer rev rey ria rib rid rie rii rir riv riy rra rrb rrd rri rrr rva rvb rvd rve rvi rvr rvv rvy ry- rya ryd rye ryr ryy v-a v-e vaa vab vad vae vai var vav vay vba vbd vbi vbr vbv vdb vdd vde vdi vdr vdv vea veb ved vee vei ver vey vi- via vib vid vie vii vir viv viy vra vrb vrd vre vri vrr vry vva vvb vvi vvr vvv vyd vye yaa yab yad yae yai yar yav yay ybe ybi ybr yby yda yde ydy yea yeb yed yee yei yer yev yey yid yie yii yir yra yre yva yve yvi yvr yvy yyb yye yyy