nnn nno nns no- non noo nor nos noy nrn nro nrr nrs nry nsn nso nsr nss nsy nyn nyo nys nyy on- onn ono onr ons ony oo- oon ooo oor oos or- orn oro orr ors ory os- osn oso osr oss oyo oys rnn rno rnr rns rny ron roo ror ros roy rrn rrr rrs rsn rso rsr rss ry- ryn ryo ryr rys ryy snn sno snr sns sny son soo sor sos soy sr- srn sro srr srs sry ss- ssn sso ssr sss sy- syn syr sys ynn yns yny yon yoo yor yos yoy yrn yro yrs yso ysr yss ysy yys yyy