nsp nss o-i oaa oac oae oag oai oal oam oan oao oap oas oc- oca occ ocg oci ocl ocm ocn oco ocp ocs oea oec oee oeg oei oel oem oen oeo oep oes oga ogc oge ogg ogi ogl ogn ogo ogp ogs oia oic oie oii oil oim oin oio oip ois ola olc ole olg oli oll olm oln olo olp ols om- oma omc ome omg omi oml omm omn omo omp oms on- ona onc one ong oni onl onn ono onp ons oo- ooa ooc oog ooi ool oom oon ooo oop oos op- opa opc ope opg opi opl opm opn opo opp ops os- osa osc ose osg osi osl osm osn oso osp oss p-p paa pac pae pag pai pal pam pan pao pap pas pca pcc pce pcg pci pcl pcm pcn pco pcp pcs pea pec pee peg pei pel pem pen peo pep pes pga pgc pge pgg pgi pgl pgm pgn pgo pgp pgs pia pic pie pig pii pil pim pin pio pip pis pla plc ple plg pli pll plm pln plo plp pls pma pmc pme pmg pmi pml pmm pmn pmo pmp pms pn- pna pnc pne png pni pnl pnm pnn pno pnp pns poa poc poe pog poi pol pom pon poo pop pos ppa ppc ppe ppg ppi ppl ppm ppn ppo ppp pps ps- psa psc pse psg psi psl psm psn pso psp pss saa sac sae sag sai sal sam san sao sap sas sca scc sce scg sci scl scm scn sco scp scs se- sea sec see seg sei sel sem sen seo sep ses sga sgc sge sgg sgi sgl sgm sgn sgo sgp sgs sia sic sie sig sii sil sim sin sio sip sis sla slc sle slg sli sll slm sln slo slp sls sma smc sme smg smi sml smm smn smo smp sms sna snc sne sng sni snl snm snn sno snp sns soa soc soe sog soi sol som son soo sop sos spa spc spe spg spi spl spm spn spo spp sps ss- ssa ssc sse ssg ssi ssl ssm ssn sso ssp sss