i-v iii iin iio iip iir iis iit in- ini inn ino inp inr ins int inv io- ioi ion ioo iop ior ios iot iov ipi ipn ipo ipp ipr ips ipt ipv ir- iri irn iro irp irr irs irt irv is- isi isn iso isp isr iss ist isv iti itn ito itp its itt itv ivi ivo ivp ivr ivs ivt ivv n-i nii nin nio nip nir nis nit niv nni nnn nno nnp nns nnt nnv no- noi non noo nop nor nos not nov npi npn npo npp npr nps npt npv nri nrn nro nrp nrr nrs nrt nrv nsi nsn nso nsp nsr nss nst nsv nti ntn nto ntp ntr nts ntt ntv nvi nvn nvp nvt nvv o-i oii oin oio oip oir ois oit oiv on- oni onn ono onp onr ons ont oo- ooi oon ooo oop oor oos oot oov op- opi opn opo opp opr ops opt opv or- ori orn oro orp orr ors ort orv os- osi osn oso osp osr oss ost osv ot- oti otn oto otp otr ots ott otv ov- ovi ovo ovp ovs ovv p-p pii pin pio pip pir pis pit piv pn- pni pnn pno pnp pnr pns pnt pnv poi pon poo pop por pos pot pov ppi ppn ppo ppp ppr pps ppt ppv pri prn pro prp prr prs prt prv ps- psi psn pso psp psr pss pst psv pt- pti ptn pto ptp ptr pts ptt ptv pvi pvn pvo pvp pvr pvs pvt pvv rii rin rio rip rir ris rit riv rni rnn rno rnp rnr rns rnt rnv roi ron roo rop ror ros rot rov rpi rpn rpo rpp rpr rps rpt rpv rri rrn rrp rrr rrs rrt rsi rsn rso rsp rsr rss rst rsv rti rtn rto rtp rtr rts rtt rtv rvi rvn rvo rvp rvr rvs rvt rvv sii sin sio sip sir sis sit siv sni snn sno snp snr sns snt snv soi son soo sop sor sos sot sov spi spn spo spp spr sps spt spv sr- sri srn sro srp srr srs srt srv ss- ssi ssn sso ssp ssr sss sst ssv sti stn sto stp str sts stt stv svi svn svo svp svr svs svt svv tii tin tio tip tir tis tit tiv tni tnn tno tnp tnr tns tnt to- toi ton too top tor tos tot tov tpi tpn tpo tpp tpr tps tpt tpv tri trn tro trp trr trs trt trv tsi tsn tso tsp tsr tss tst tsv tti ttn tto ttp ttr tts ttt ttv tvi tvn tvo tvp tvr tvs tvt vi- vii vin vio vip vir vis vit viv vn- vni vno vnp vnr vns vnv voi von voo vop vor vos vot vov vpi vpn vpo vpp vpr vps vpt vri vrn vrp vrr vrs vrt vsi vsn vso vsp vsr vss vst vsv vti vto vtr vts vtt vtv vvi vvo vvr vvs vvt vvv