a-a a-b a-i aaa aab aai aam aan aao aas aay ab- aba abb abi abm abn abo abs aby ai- aia aib aii aim ain aio ais aiy ama amb ami amm amn amo ams amy an- ana anb ani anm ann ano ans any aoa aob aoi aom aon aoo aos as- asa asb asi asm asn aso ass asy ay- aya ayi ayn ayo ays baa bab bai bam ban bao bas bay bba bbb bbi bbm bbn bbo bbs bby bi- bia bib bii bim bin bio bis biy bma bmb bmi bmm bmn bmo bms bna bnb bni bnn bno bns boa bob boi bom bon boo bos boy bsa bsb bsi bsm bsn bso bss bsy by- bya byi bym byn byo bys ia- iaa iab iai iam ian iao ias iba ibb ibi ibm ibn ibo ibs iby iia iib iii iim iin iio iis im- ima imb imi imm imn imo ims imy in- ina inb ini inm inn ino ins iny io- ioa iob ioi iom ion ioo ios is- isa isb isi ism isn iso iss isy iya iym iyo iys iyy m-o maa mab mai mam man mao mas may mba mbb mbi mbm mbo mbs mi- mia mib mii mim min mio mis miy mma mmb mmi mmm mmn mmo mms mna mnb mni mnm mnn mno mns moa mob moi mom mon moo mos moy msa msb msi msm msn mso mss msy my- mya myb mym myn myo mys n-i naa nab nai nam nan nao nas nay nba nbb nbi nbm nbn nbo nbs nia nib nii nim nin nio nis nma nmb nmi nmm nmn nmo nms nna nnb nni nnm nnn nno nns no- noa nob noi nom non noo nos noy nsa nsb nsi nsm nsn nso nss nsy nya nym nyn nyo nys nyy o-i oaa oab oai oam oan oao oas ob- oba obb obi obm obn obo obs oby oia oib oii oim oin oio ois om- oma omb omi omm omn omo oms omy on- ona onb oni onn ono ons ony oo- ooa oob ooi oom oon ooo oos os- osa osb osi osm osn oso oss oya oyi oyo oys saa sab sai sam san sao sas say sba sbb sbi sbm sbn sbo sbs sby sia sib sii sim sin sio sis sma smb smi smm smn smo sms smy sna snb sni snm snn sno sns sny soa sob soi som son soo sos soy ss- ssa ssb ssi ssm ssn sso sss sy- sya syb syi sym syn sys yaa yab yai yam yan yao yas yay ybi ybm ybs yby yii yim yin yio yis yma ymi ymm ymo yms yna ynn yns yny yob yoi yom yon yoo yos yoy ysa ysb ysi ysm yso yss ysy yyb yys yyy