-er -ey a-a a-b aaa aab aae aaf aao aar aaw aay ab- aba abb abe abf abo abr abw aby aea aeb aee aef aeo aer aew aey af- afa afb afe aff afo afr afw afy aoa aob aoe aof aoo aor aow ar- ara arb are arf aro arr arw ary aw- awa awb awe awf awo awr aww awy ay- aya aye ayf ayo ayr ayw baa bab bae baf bao bar baw bay bba bbb bbe bbf bbo bbr bbw bby be- bea beb bee bef beo ber bew bey bfa bfb bfe bff bfo bfr bfy boa bob boe bof boo bor bow boy bra brb bre brf bro brr brw bry bwa bwb bwf bwo bwr bwy by- bya bye byf byo byr eaa eab eae eaf eao ear eaw eba ebb ebe ebf ebo ebr ebw eby eea eeb eee eef eeo eer eew eey ef- efa efb efe eff efo efr efw eo- eoa eob eoe eof eoo eor eow era erb ere erf ero err erw ery ewa ewb ewe ewf ewo ewr eww ewy eya eye eyo eyr faa fab fae faf fao far faw fay fba fbb fbe fbf fbo fbr fbw fea feb fee fef feo fer few fey ffa ffe fff ffo ffr ffw ffy foa fob foe fof foo for fow foy fra frb fre frf fro frr frw fry fwa fwb fwe fwf fwo fy- fya fyb fye fyo oaa oab oae oaf oao oar oaw ob- oba obb obe obf obo obr obw oby oea oeb oee oef oeo oer oey of- ofa ofb ofe off ofo ofr ofw oo- ooa oob oof ooo oor oow or- ora orb ore orf oro orr ory owa owb owe owf owo oww oya oye oyo ra- raa rab rae raf rao rar raw ray rba rbb rbe rbf rbo rbr rbw re- rea reb ree ref reo rer rew rey rfa rfb rfe rff rfo rfr rfw roa rob roe rof roo ror row roy rra rrb rrf rrr rwa rwb rwe rwf rwr rwy ry- rya rye ryf ryo ryr ryy waa wab wae waf wao war waw way wba wbb wbe wbf wbo wbr wbw wea web wee wef weo wer wew wey wfa wfb wfe wff wfo wfr wfw woa wob woe wof woo wor wow woy wr- wra wre wrf wro wrr wrw wry wwa wwe wwf wwo www wy- wya wye wyf wyo wyr yaa yab yae yaf yao yar yaw yay ybe ybf ybr yby yea yeb yee yef yeo yer yew yey yfa yfe yff yfr yob yoe yof yoo yor yow yoy yra yre yrf yro yyb yye yyf yyy