ddd ddi ddm dds di- did dii dim dis div dmd dmi dmm dms dmv dsd dsi dsm dss dsv dvd dvi dvm dvs i-d i-v idd idi idm ids idv iid iii iim iis im- imd imi imm ims imv is- isd isi ism iss isv ivd ivi ivs ivv m-v mdd mdi mdm mds mdv mi- mid mii mim mis miv mmd mmi mmm mms mmv msd msi msm mss msv mvd mvi mvm mvs mvv sdd sdi sdm sds sdv sid sii sim sis siv smd smi smm sms smv ss- ssd ssi ssm sss ssv svd svi svm svs svv vdd vdi vdm vds vdv vi- vid vii vim vis viv vm- vmd vmi vmm vsd vsi vsm vss vsv vvi vvm vvs vvv