a-a a-t aaa aam aap aar aas aat ama amm amp amr ams amt ap- apa apm app apr aps apt ar- ara arm arp arr ars art as- asa asm asp asr ass ast at- ata atm atp atr ats att m-r maa mam map mar mas mat mma mmm mmp mmr mms mmt mpa mpm mpp mpr mps mpt mra mrm mrp mrr mrs mrt msa msm msp msr mss mst mta mtm mtp mtr mts mtt p-p paa pam pap par pas pat pma pmm pmp pmr pms pmt ppa ppm ppp ppr pps ppt pra prm prp prr prs prt ps- psa psm psp psr pss pst pt- pta ptm ptp ptr pts ptt ra- raa ram rap rar ras rat rma rmm rmp rmr rms rmt rpa rpm rpp rpr rps rpt rra rrm rrp rrr rrs rrt rsa rsm rsp rsr rss rst rta rtm rtp rtr rts rtt saa sam sap sar sas sat sma smm smp smr sms smt spa spm spp spr sps spt sr- sra srm srp srr srs srt ss- ssa ssm ssp ssr sss sst sta stm stp str sts stt taa tam tap tar tas tat tma tmm tmp tmr tms tmt tpa tpm tpp tpr tps tpt tra trm trp trr trs trt tsa tsm tsp tsr tss tst tta ttm ttp ttr tts ttt