rve rvg rvi rvl rvn rvr rvs rvv scc scd sce scg sci sck scl scn scr scs scv sdc sdd sde sdg sdi sdk sdl sdn sdr sds sdv se- sec sed see seg sei sek sel sen ser ses sev sgc sgd sge sgg sgi sgk sgl sgn sgr sgs sgv sic sid sie sig sii sik sil sin sir sis siv sk- skc skd ske skg ski skk skl skr sks slc sld sle slg sli slk sll sln slr sls slv snc snd sne sng sni snk snl snn snr sns snv sr- src srd sre srg sri srk srl srn srr srs srv ss- ssc ssd sse ssg ssi ssk ssl ssn ssr sss ssv svc svd sve svg svi svk svl svn svr svs svv v-e vcc vcd vce vci vcl vcn vcr vcs vdc vdd vde vdg vdi vdk vdl vdr vds vdv vec ved vee veg vei vek vel ven ver ves vgc vgg vgl vgn vgr vgs vi- vic vid vie vig vii vik vil vin vir vis viv vkg vl- vlc vld vle vlk vll vls vlv vn- vnd vng vni vnl vnr vns vnv vrc vrd vre vrg vri vrk vrn vrr vrs vsc vsd vse vsg vsi vsk vsl vsn vsr vss vsv vvc vvg vvi vvr vvs vvv