m-o m-v mmm mmn mmo mms mmv mnm mnn mno mns mom mon moo mos mov msm msn mso mss msv mvm mvn mvo mvs mvv nmm nmn nmo nms nnm nnn nno nns nnv no- nom non noo nos nov nsm nsn nso nss nsv nvm nvn nvv om- omm omn omo oms omv on- onn ono ons oo- oom oon ooo oos oov os- osm osn oso oss osv ov- ovo ovs ovv smm smn smo sms smv snm snn sno sns snv som son soo sos sov ss- ssm ssn sso sss ssv svm svn svo svs svv vm- vmm vmn vmo vn- vnm vno vns vnv vom von voo vos vov vsm vsn vso vss vsv vvm vvo vvs vvv