a-a a-t aaa aaf aak aap aar aas aat af- afa aff afk afp afr afs aft aka akk akp akr aks ap- apa apf apk app apr aps apt ar- ara arf ark arp arr ars art as- asa asf ask asp asr ass ast at- ata atf atp atr ats att faa faf fak fap far fas fat ffa fff ffk ffp ffr ffs fft fka fkf fkk fkp fkt fpa fpk fpp fpr fps fpt fra frf frk frp frr frs frt fsa fsf fsk fsp fsr fss fst fta ftf ftk ftp ftr fts ftt k-t ka- kaa kaf kak kap kar kas kat kfa kff kfs kkk kkp kkr kks kkt kpa kpf kpk kpp kpr kps kpt kra krf krk krp krr krs krt ksa ksf ksk ksp ksr kss kst kta ktf ktk ktp ktr kts ktt p-p paa paf pak pap par pas pat pfa pff pfk pfp pfr pfs pft pka pkf pkp pkr pks pkt ppa ppf ppk ppp ppr pps ppt pra prf prk prp prr prs prt ps- psa psf psk psp psr pss pst pt- pta ptf ptk ptp ptr pts ptt ra- raa raf rak rap rar ras rat rfa rff rfk rfp rfr rfs rft rkf rkk rkp rks rkt rpa rpf rpk rpp rpr rps rpt rra rrf rrk rrp rrr rrs rrt rsa rsf rsk rsp rsr rss rst rta rtf rtk rtp rtr rts rtt saa saf sak sap sar sas sat sfa sff sfk sfp sfr sfs sft sk- ska skf skk skp skr sks skt spa spf spk spp spr sps spt sr- sra srf srk srp srr srs srt ss- ssa ssf ssk ssp ssr sss sst sta stf stk stp str sts stt taa taf tak tap tar tas tat tfa tff tfk tfp tfr tfs tft tka tkk tkp tkr tks tkt tpa tpf tpk tpp tpr tps tpt tra trf trk trp trr trs trt tsa tsf tsk tsp tsr tss tst tta ttf ttk ttp ttr tts ttt