-up m-r mmm mmp mmr mmt mmu mpm mpp mpr mpt mpu mrm mrp mrr mrt mru mtm mtp mtr mtt mtu mum mup mur mut muu p-p pmm pmp pmr pmt pmu ppm ppp ppr ppt ppu prm prp prr prt pru pt- ptm ptp ptr ptt ptu pum pup pur put puu rmm rmp rmr rmt rpm rpp rpr rpt rpu rrm rrp rrr rrt rru rtm rtp rtr rtt rtu rum rup rur rut ruu tmm tmp tmr tmt tmu tpm tpp tpr tpt tpu trm trp trr trt tru ttm ttp ttr ttt ttu tum tup tur tut tuu um- umm ump umr umt umu up- upm upp upr upt upu ur- urm urp urr urt uru utm utp utr utt utu uum uur uut uuu