a-a a-b a-i aaa aab aag aai aan aao aar aay ab- aba abb abg abi abn abo abr aby ag- aga agb agg agi agn ago agr agy ai- aia aib aig aii ain aio air aiy an- ana anb ang ani ann ano anr any aoa aob aog aoi aon aoo aor ar- ara arb arg ari arn aro arr ary ay- aya ayi ayn ayo ayr baa bab bag bai ban bao bar bay bba bbb bbg bbi bbn bbo bbr bby bga bgb bgg bgi bgn bgo bgr bi- bia bib big bii bin bio bir biy bna bnb bng bni bnn bno bnr boa bob bog boi bon boo bor boy bra brb brg bri brn bro brr bry by- bya byg byi byn byo byr gaa gab gag gai gan gao gar gay gba gbg gbi gbn gbo gbr gby gga ggb ggg ggi ggn ggo ggr gia gib gig gii gin gio gir giy gna gnb gni gnn gno gnr goa gob gog goi gon goo gor goy gra grb grg gri grn gro grr gry gy- gya gyb gyn gyo gyr ia- iaa iab iag iai ian iao iar iba ibb ibg ibi ibn ibo ibr iby iga igb igg igi ign igo igr igy iia iib iii iin iio iir in- ina inb ing ini inn ino inr iny io- ioa iob iog ioi ion ioo ior ir- ira irb irg iri irn iro irr iry iya iyo iyr iyy n-i naa nab nag nai nan nao nar nay nba nbb nbg nbi nbn nbo nbr nga ngb ngg ngi ngn ngo nia nib nig nii nin nio nir nna nnb nng nni nnn nno no- noa nob nog noi non noo nor noy nra nrb nrg nri nrn nro nrr nry nya nyg nyn nyo nyy o-i oaa oab oag oai oan oao oar ob- oba obb obg obi obn obo obr oby oga ogg ogi ogn ogo ogy oia oib oii oin oio oir on- ona onb ong oni onn ono onr ony oo- ooa oob oog ooi oon ooo oor or- ora orb org ori orn oro orr ory oya oyi oyo ra- raa rab rag rai ran rao rar ray rba rbb rbg rbi rbn rbo rbr rga rgb rgg rgi rgn rgo rgr ria rib rig rii rin rio rir riy rna rnb rng rni rnn rno rnr rny roa rob rog roi ron roo ror roy rra rrb rrg rri rrn rrr ry- rya ryg ryn ryo ryr ryy yaa yab yag yai yan yao yar yay ybg ybi ybr yby yga ygo yig yii yin yio yir yna yng ynn yny yob yog yoi yon yoo yor yoy yra yrg yrn yro yyb yyg yyy