a-a a-b a-i aaa aab aag aah aai aao aar aay ab- aba abb abg abh abi abo abr aby ag- aga agb agg agh agi ago agr agy aha ahb ahg ahh ahi aho ahr ahy ai- aia aib aig aih aii aio air aiy aoa aob aog aoh aoi aoo aor ar- ara arb arg arh ari aro arr ary ay- aya ayh ayi ayo ayr baa bab bag bah bai bao bar bay bba bbb bbg bbh bbi bbo bbr bby bga bgb bgg bgh bgi bgo bgr bha bhb bhg bhh bhi bho bhr bi- bia bib big bih bii bio bir biy boa bob bog boh boi boo bor boy bra brb brg brh bri bro brr bry by- bya byg byh byi byo byr gaa gab gag gah gai gao gar gay gba gbg gbh gbi gbo gbr gby gga ggb ggg ggh ggi ggo ggr gha ghb ghg ghh ghi gho ghr gia gib gig gih gii gio gir giy goa gob gog goh goi goo gor goy gra grb grg grh gri gro grr gry gy- gya gyb gyo gyr h-i haa hab hag hah hai hao har hay hba hbb hbg hbh hbi hbo hbr hby hga hgb hgg hgh hgi hgo hgr hgy hha hhb hhg hhh hhi hho hhr hhy hia hib hig hih hii hio hir hoa hob hog hoh hoi hoo hor hoy hr- hra hrb hrg hrh hri hro hrr hy- hya hyb hyg hyh hyi hyo hyr hyy ia- iaa iab iag iah iai iao iar iba ibb ibg ibh ibi ibo ibr iby iga igb igg igh igi igo igr igy iha ihb ihg ihh ihi iho ihr ihy iia iib iih iii iio iir io- ioa iob iog ioh ioi ioo ior ir- ira irb irg iri iro irr iry iya iyo iyr iyy o-i oaa oab oag oah oai oao oar ob- oba obb obg obh obi obo obr oby oga ogg ogh ogi ogo ogy oha ohg ohh ohi oho ohr oia oib oii oio oir oo- ooa oob oog ooh ooi ooo oor or- ora orb org orh ori oro orr ory oya oyi oyo ra- raa rab rag rah rai rao rar ray rba rbb rbg rbh rbi rbo rbr rga rgb rgg rgh rgi rgo rgr rh- rha rhb rhg rhh rhi rho rhr ria rib rig rih rii rio rir riy roa rob rog roh roi roo ror roy rra rrb rrg rrh rri rrr ry- rya ryg ryo ryr ryy yaa yab yag yah yai yao yar yay ybg ybi ybr yby yga ygo yha yhi yig yih yii yio yir yob yog yoi yoo yor yoy yra yrg yro yyb yyg yyy