iii iin iip iir iis iit in- ini inn inp inr ins int ipi ipn ipp ipr ips ipt ir- iri irn irp irr irs irt is- isi isn isp isr iss ist iti itn itp its itt n-i nii nin nip nir nis nit nni nnn nnp nns nnt npi npn npp npr nps npt nri nrn nrp nrr nrs nrt nsi nsn nsp nsr nss nst nti ntn ntp ntr nts ntt p-p pii pin pip pir pis pit pn- pni pnn pnp pnr pns pnt ppi ppn ppp ppr pps ppt pri prn prp prr prs prt ps- psi psn psp psr pss pst pt- pti ptn ptp ptr pts ptt rii rin rip rir ris rit rni rnn rnp rnr rns rnt rpi rpn rpp rpr rps rpt rri rrn rrp rrr rrs rrt rsi rsn rsp rsr rss rst rti rtn rtp rtr rts rtt sii sin sip sir sis sit sni snn snp snr sns snt spi spn spp spr sps spt sr- sri srn srp srr srs srt ss- ssi ssn ssp ssr sss sst sti stn stp str sts stt tii tin tip tir tis tit tni tnn tnp tnr tns tnt tpi tpn tpp tpr tps tpt tri trn trp trr trs trt tsi tsn tsp tsr tss tst tti ttn ttp ttr tts ttt