-ol fff ffl ffm ffo ffr ffs ffu ffv flf fll flm flo flr fls flu fmf fml fmm fmo fmr fms fmu fmv fof fol fom foo for fos fou frf frl frm fro frr frs fru fsf fsl fsm fso fsr fss fsu fsv fuf ful fum fuo fur fus fuu fuv lff lfl lfm lfo lfr lfs lfu llf lll llm llo llr lls llu llv lmf lml lmm lmo lmr lms lmu lmv lof lol lom loo lor los lou lov lrf lrm lro lrr lrs lru lrv lsf lsl lsm lso lsr lss lsu lsv luf lul lum luo lur lus luu luv lvf lvl lvm lvr lvs lvv m-f m-o m-r m-v mff mfl mfm mfo mfr mfs mfu mfv mlf mll mlm mlo mlr mls mlu mlv mmf mml mmm mmo mmr mms mmu mmv mof mol mom moo mor mos mou mov mrf mrl mrm mro mrr mrs mru mrv msf msl msm mso msr mss msu msv muf mul mum mur mus muu mvf mvl mvm mvo mvr mvs mvv of- off ofl ofm ofo ofr ofs ofu ofv olf oll olm olo ols olu om- omf oml omm omo omr oms omu omv oo- oof ool oom ooo oor oos oov or- orf orl orm oro orr ors oru orv os- osf osl osm oso osr oss osu osv ou- ouf oul oum ouo our ous ov- ovf ovl ovo ovs ovv rff rfl rfm rfo rfr rfs rfu rfv rlf rll rlm rlo rlr rls rlu rmf rml rmm rmo rmr rms rmv rof rol rom roo ror ros rou rov rrf rrl rrm rrr rrs rru rsf rsl rsm rso rsr rss rsu rsv ruf rum ruo rur rus ruu ruv rvf rvl rvm rvo rvr rvs rvu rvv sff sfl sfm sfo sfr sfs sfu sfv slf sll slm slo slr sls slu slv smf sml smm smo smr sms smu smv sof sol som soo sor sos sou sov sr- srf srl srm sro srr srs srv ss- ssf ssl ssm sso ssr sss ssu ssv suf sul sum suo sur sus suu suv svf svl svm svo svr svs svu svv uff ufl ufm ufo ufr ufs ufu ufv ulf ull ulm ulo ulr uls ulu ulv um- umf uml umm umo umr ums umu uol uom uoo uor uos ur- urf url urm uro urr urs uru usf usl usm uso usr uss usu usv uum uur uus uuu uvf uvl uvm uvo uvs uvu uvv vff vfl vfm vfr vfs vfu vfv vl- vlf vll vlm vlo vls vlv vm- vmf vmm vmo vmr vmu vof vol vom voo vor vos vou vov vrf vrm vrr vrs vru vsf vsl vsm vso vsr vss vsu vsv vul vum vur vus vuv vvm vvo vvr vvs vvv