iii iin iio iip iis iit in- ini inn ino inp inq ins int io- ioi ion ioo iop ios iot ipi ipn ipo ipp ips ipt iqs iqt is- isi isn iso isp isq iss ist iti itn ito itp itq its itt n-i nii nin nio nip niq nis nit nni nnn nno nnp nns nnt no- noi non noo nop nos not npi npn npo npp nps npt nqs nqt nsi nsn nso nsp nss nst nti ntn nto ntp ntq nts ntt o-i oii oin oio oip ois oit on- oni onn ono onp ons ont oo- ooi oon ooo oop oos oot op- opi opn opo opp opq ops opt oqo os- osi osn oso osp osq oss ost ot- oti otn oto otp ots ott p-p pii pin pio pip piq pis pit pn- pni pnn pno pnp pns pnt poi pon poo pop pos pot ppi ppn ppo ppp ppq pps ppt pqi pqq pqs ps- psi psn pso psp pss pst pt- pti ptn pto ptp ptq pts ptt qin qio qip qis qit qni qns qoi qoo qop qos qpp qps qqq qsi qso qsp qst qti qto qtq qts sii sin sio sip siq sis sit sni snn sno snp sns snt soi son soo sop soq sos sot spi spn spo spp spq sps spt sqi sqn sqq sqs ss- ssi ssn sso ssp ssq sss sst sti stn sto stp stq sts stt tii tin tio tip tis tit tni tnn tno tnp tnq tns tnt to- toi ton too top toq tos tot tpi tpn tpo tpp tpq tps tpt tqo tsi tsn tso tsp tsq tss tst tti ttn tto ttp tts ttt