-er -ey a-a a-b aaa aab aae aaj aan aao aar aay ab- aba abb abe abj abn abo abr aby aea aeb aee aej aen aeo aer aey aja ajb aje ajj ajn ajo ajr ajy an- ana anb ane anj ann ano anr any aoa aob aoe aoj aon aoo aor ar- ara arb are arj arn aro arr ary ay- aya aye ayn ayo ayr baa bab bae baj ban bao bar bay bba bbb bbe bbn bbo bbr bby be- bea beb bee ben beo ber bey bja bjj bjn bjr bna bnb bne bnj bnn bno bnr boa bob boe boj bon boo bor boy bra brb bre brj brn bro brr bry by- bya bye byj byn byo byr eaa eab eae eaj ean eao ear eba ebb ebe ebj ebn ebo ebr eby eea eeb eee een eeo eer eey eja ejo en- ena enb ene enn eno enr eny eo- eoa eob eoe eon eoo eor era erb ere ern ero err ery eya eye eyn eyo eyr jaa jab jae jaj jan jao jar jay jba jbj jbo jbr jea jeb jee jej jen jeo jer jey jja jjb jjj jjr jjy jna jne jnj jnn jno jnr joa job joe joj jon joo jor joy jra jrb jrn jro jrr jyj jyr naa nab nae naj nan nao nar nay nba nbb nbe nbn nbo nbr ne- nea neb nee nej nen neo ner ney nja nje njn nna nnb nne nnn nno no- noa nob noe noj non noo nor noy nra nrb nre nrj nrn nro nrr nry nya nye nyn nyo nyy oaa oab oae oaj oan oao oar ob- oba obb obe obj obn obo obr oby oea oeb oee oen oeo oer oey oja ojb oje ojo ojy on- ona onb one onj onn ono onr ony oo- ooa oob oon ooo oor or- ora orb ore orn oro orr ory oya oye oyo ra- raa rab rae raj ran rao rar ray rba rbb rbe rbn rbo rbr re- rea reb ree ren reo rer rey rja rjr rna rnb rnn rno rnr rny roa rob roe roj ron roo ror roy rra rrb rrn rrr ry- rya rye ryn ryo ryr ryy yaa yab yae yan yao yar yay ybe ybr yby yea yeb yee yen yeo yer yey yna yne ynn yny yob yoe yoj yon yoo yor yoy yra yre yrn yro yyb yye yyy