a-a a-t aaa aaf aam aao aap aar aat af- afa aff afm afo afp afr aft ama amf amm amo amp amr amt aoa aof aom aoo aop aor aot ap- apa apf apm apo app apr apt ar- ara arf arm aro arp arr art at- ata atf atm ato atp atr att faa faf fam fao fap far fat ffa fff ffm ffo ffp ffr fft fma fmf fmm fmo fmp fmr fmt foa fof fom foo fop for fot fpa fpm fpo fpp fpr fpt fra frf frm fro frp frr frt fta ftf ftm fto ftp ftr ftt m-f m-o m-r maa maf mam mao map mar mat mfa mff mfm mfo mfp mfr mft mma mmf mmm mmo mmp mmr mmt moa mof mom moo mop mor mot mpa mpf mpm mpo mpp mpr mpt mra mrf mrm mro mrp mrr mrt mta mtf mtm mto mtp mtr mtt oaa oaf oam oao oap oar oat of- ofa off ofm ofo ofp ofr oft om- oma omf omm omo omp omr omt oo- ooa oof oom ooo oop oor oot op- opa opf opm opo opp opr opt or- ora orf orm oro orp orr ort ot- ota otf otm oto otp otr ott p-p paa paf pam pao pap par pat pfa pff pfm pfo pfp pfr pft pma pmf pmm pmo pmp pmr pmt poa pof pom poo pop por pot ppa ppf ppm ppo ppp ppr ppt pra prf prm pro prp prr prt pt- pta ptf ptm pto ptp ptr ptt ra- raa raf ram rao rap rar rat rfa rff rfm rfo rfp rfr rft rma rmf rmm rmo rmp rmr rmt roa rof rom roo rop ror rot rpa rpf rpm rpo rpp rpr rpt rra rrf rrm rrp rrr rrt rta rtf rtm rto rtp rtr rtt taa taf tam tao tap tar tat tfa tff tfm tfo tfp tfr tft tma tmf tmm tmo tmp tmr tmt to- toa tof tom too top tor tot tpa tpf tpm tpo tpp tpr tpt tra trf trm tro trp trr trt tta ttf ttm tto ttp ttr ttt