ggg ggm ggn ggo ggs gmg gmm gmn gmo gms gnm gnn gno gns gog gom gon goo gos gsg gsm gsn gso gss m-o mgm mgn mgo mgs mmg mmm mmn mmo mms mng mnm mnn mno mns mog mom mon moo mos msg msm msn mso mss ngg ngm ngn ngo ngs nmg nmm nmn nmo nms nng nnm nnn nno nns no- nog nom non noo nos nsg nsm nsn nso nss ogg ogn ogo ogs om- omg omm omn omo oms on- ong onn ono ons oo- oog oom oon ooo oos os- osg osm osn oso oss sgg sgm sgn sgo sgs smg smm smn smo sms sng snm snn sno sns sog som son soo sos ss- ssg ssm ssn sso sss