iii iim iin iio iip iir iis im- imi imm imn imo imp ims in- ini inm inn ino inp inr ins io- ioi iom ion ioo iop ior ios ipi ipm ipn ipo ipp ipr ips ir- iri irm irn iro irp irr irs is- isi ism isn iso isp isr iss m-o m-r mi- mii mim min mio mip mir mis mmi mmm mmn mmo mmp mmr mms mni mnm mnn mno mnp mnr mns moi mom mon moo mop mor mos mpi mpm mpn mpo mpp mpr mps mri mrm mrn mro mrp mrr mrs msi msm msn mso msp msr mss n-i nii nim nin nio nip nir nis nmi nmm nmn nmo nmp nmr nms nni nnm nnn nno nnp nns no- noi nom non noo nop nor nos npi npm npn npo npp npr nps nri nrm nrn nro nrp nrr nrs nsi nsm nsn nso nsp nsr nss o-i oii oim oin oio oip oir ois om- omi omm omn omo omp omr oms on- oni onn ono onp onr ons oo- ooi oom oon ooo oop oor oos op- opi opm opn opo opp opr ops or- ori orm orn oro orp orr ors os- osi osm osn oso osp osr oss p-p pii pim pin pio pip pir pis pmi pmm pmn pmo pmp pmr pms pn- pni pnm pnn pno pnp pnr pns poi pom pon poo pop por pos ppi ppm ppn ppo ppp ppr pps pri prm prn pro prp prr prs ps- psi psm psn pso psp psr pss rii rim rin rio rip rir ris rmi rmm rmn rmo rmp rmr rms rni rnm rnn rno rnp rnr rns roi rom ron roo rop ror ros rpi rpm rpn rpo rpp rpr rps rri rrm rrn rrp rrr rrs rsi rsm rsn rso rsp rsr rss sii sim sin sio sip sir sis smi smm smn smo smp smr sms sni snm snn sno snp snr sns soi som son soo sop sor sos spi spm spn spo spp spr sps sr- sri srm srn sro srp srr srs ss- ssi ssm ssn sso ssp ssr sss