iii iin iio iir iis in- ini inn ino inq inr ins io- ioi ion ioo ior ios iqs ir- iri irn iro irq irr irs is- isi isn iso isq isr iss n-i nii nin nio niq nir nis nni nnn nno nns no- noi non noo nor nos nqs nri nrn nro nrr nrs nsi nsn nso nsr nss o-i oii oin oio oir ois on- oni onn ono onr ons oo- ooi oon ooo oor oos oqo or- ori orn oro orr ors os- osi osn oso osq osr oss qin qio qir qis qni qns qoi qoo qor qos qqq qri qrs qsi qso qsr rii rin rio riq rir ris rni rnn rno rnr rns roi ron roo ror ros rqn rqs rri rrn rrq rrr rrs rsi rsn rso rsq rsr rss sii sin sio siq sir sis sni snn sno snr sns soi son soo soq sor sos sqi sqn sqq sqr sqs sr- sri srn sro srq srr srs ss- ssi ssn sso ssq ssr sss