-up m-r mmm mmp mmr mms mmt mmu mpm mpp mpr mps mpt mpu mrm mrp mrr mrs mrt mru msm msp msr mss mst msu mtm mtp mtr mts mtt mtu mum mup mur mus mut muu p-p pmm pmp pmr pms pmt pmu ppm ppp ppr pps ppt ppu prm prp prr prs prt pru ps- psm psp psr pss pst psu pt- ptm ptp ptr pts ptt ptu pum pup pur pus put puu rmm rmp rmr rms rmt rpm rpp rpr rps rpt rpu rrm rrp rrr rrs rrt rru rsm rsp rsr rss rst rsu rtm rtp rtr rts rtt rtu rum rup rur rus rut ruu smm smp smr sms smt smu spm spp spr sps spt spu sr- srm srp srr srs srt ss- ssm ssp ssr sss sst ssu stm stp str sts stt stu sum sup sur sus sut suu tmm tmp tmr tms tmt tmu tpm tpp tpr tps tpt tpu trm trp trr trs trt tru tsm tsp tsr tss tst tsu ttm ttp ttr tts ttt ttu tum tup tur tus tut tuu um- umm ump umr ums umt umu up- upm upp upr ups upt upu ur- urm urp urr urs urt uru usm usp usr uss ust usu utm utp utr uts utt utu uum uur uus uut uuu