bbb bbi bbm bbn bbs bby bi- bib bii bim bin bis biy bmb bmi bmm bmn bms bnb bni bnn bns bsb bsi bsm bsn bss bsy by- byi bym byn bys ibb ibi ibm ibn ibs iby iib iii iim iin iis im- imb imi imm imn ims imy in- inb ini inm inn ins iny is- isb isi ism isn iss isy iym iys iyy mbb mbi mbm mbs mi- mib mii mim min mis miy mmb mmi mmm mmn mms mnb mni mnm mnn mns msb msi msm msn mss msy my- myb mym myn mys n-i nbb nbi nbm nbn nbs nib nii nim nin nis nmb nmi nmm nmn nms nnb nni nnm nnn nns nsb nsi nsm nsn nss nsy nym nyn nys nyy sbb sbi sbm sbn sbs sby sib sii sim sin sis smb smi smm smn sms smy snb sni snm snn sns sny ss- ssb ssi ssm ssn sss sy- syb syi sym syn sys ybi ybm ybs yby yii yim yin yis ymi ymm yms ynn yns yny ysb ysi ysm yss ysy yyb yys yyy