m-o m-r mmm mmo mmr mms mmt mmu mom moo mor mos mot mou mrm mro mrr mrs mrt mru msm mso msr mss mst msu mtm mto mtr mts mtt mtu mum mur mus mut muu om- omm omo omr oms omt omu oo- oom ooo oor oos oot or- orm oro orr ors ort oru os- osm oso osr oss ost osu ot- otm oto otr ots ott otu ou- oum ouo our ous out rmm rmo rmr rms rmt rom roo ror ros rot rou rrm rrr rrs rrt rru rsm rso rsr rss rst rsu rtm rto rtr rts rtt rtu rum ruo rur rus rut ruu smm smo smr sms smt smu som soo sor sos sot sou sr- srm sro srr srs srt ss- ssm sso ssr sss sst ssu stm sto str sts stt stu sum suo sur sus sut suu tmm tmo tmr tms tmt tmu to- tom too tor tos tot tou trm tro trr trs trt tru tsm tso tsr tss tst tsu ttm tto ttr tts ttt ttu tum tuo tur tus tut tuu um- umm umo umr ums umt umu uom uoo uor uos uot ur- urm uro urr urs urt uru usm uso usr uss ust usu utm uto utr uts utt utu uum uur uus uut uuu