iii iin iio iis iit in- ini inn ino ins int iny io- ioi ion ioo ios iot is- isi isn iso iss ist isy iti itn ito its itt ity iyo iys iyt iyy n-i nii nin nio nis nit nni nnn nno nns nnt no- noi non noo nos not noy nsi nsn nso nss nst nsy nti ntn nto nts ntt nyn nyo nys nyt nyy o-i oii oin oio ois oit on- oni onn ono ons ont ony oo- ooi oon ooo oos oot os- osi osn oso oss ost ot- oti otn oto ots ott oyi oyo oys sii sin sio sis sit sni snn sno sns snt sny soi son soo sos sot soy ss- ssi ssn sso sss sst sti stn sto sts stt sty sy- syi syn sys syt tii tin tio tis tit tiy tni tnn tno tns tnt to- toi ton too tos tot toy tsi tsn tso tss tst tsy tti ttn tto tts ttt tty tyn tyo tys tyt yii yin yio yis yit ynn yns yny yoi yon yoo yos yot yoy ysi yso yss yst ysy ytn yto yts ytt yys yyt yyy