nmo nms nna nnc nne nnf nng nnh nnk nnm nnn nno nns no- noa noc noe nof nog noh nok nom non noo nos nsa nsc nse nsf nsg nsh nsk nsm nsn nso nss oaa oac oae oaf oag oah oak oam oan oao oas oc- oca occ ocf ocg och ock ocm ocn oco ocs oea oec oee oef oeg oeh oem oen oeo oes of- ofa ofc ofe off ofg ofm ofn ofo ofs oga ogc oge ogf ogg ogh ogn ogo ogs oha ohc ohe ohf ohg ohh ohm ohn oho ohs oka okc oke okg okk oko oks om- oma omc ome omf omg omh omm omn omo oms on- ona onc one onf ong onh onk onn ono ons oo- ooa ooc oof oog ooh ook oom oon ooo oos os- osa osc ose osf osg osh osk osm osn oso oss saa sac sae saf sag sah sak sam san sao sas sca scc sce scf scg sch sck scm scn sco scs se- sea sec see sef seg seh sek sem sen seo ses sfa sfc sfe sff sfg sfh sfk sfm sfn sfo sfs sga sgc sge sgf sgg sgh sgk sgm sgn sgo sgs sh- sha shc she shf shg shh shk shm shn sho shs sk- ska skc ske skf skg skh skk skm sko sks sma smc sme smf smg smh smk smm smn smo sms sna snc sne snf sng snk snm snn sno sns soa soc soe sof sog soh sok som son soo sos ss- ssa ssc sse ssf ssg ssh ssk ssm ssn sso sss