a-a a-t aaa aak aan aao aap aar aas aat aka akk akn ako akp akr aks an- ana ank ann ano anp anr ans ant aoa aok aon aoo aop aor aos aot ap- apa apk apn apo app apr aps apt ar- ara ark arn aro arp arr ars art as- asa ask asn aso asp asr ass ast at- ata atn ato atp atr ats att k-t ka- kaa kak kan kao kap kar kas kat kkk kkn kkp kkr kks kkt kn- kna knk knn kno knp knr knt koa kok kon koo kop kor kos kot kpa kpk kpn kpo kpp kpr kps kpt kra krk krn kro krp krr krs krt ksa ksk ksn kso ksp ksr kss kst kta ktk ktn kto ktp ktr kts ktt naa nak nan nao nap nar nas nat nka nkk nkn nko nkp nkr nks nkt nna nnk nnn nno nnp nns nnt no- noa nok non noo nop nor nos not npa npn npo npp npr nps npt nra nrk nrn nro nrp nrr nrs nrt nsa nsk nsn nso nsp nsr nss nst nta ntk ntn nto ntp ntr nts ntt oaa oak oan oao oap oar oas oat oka okk oko okp okr oks on- ona onk onn ono onp onr ons ont oo- ooa ook oon ooo oop oor oos oot op- opa opk opn opo opp opr ops opt or- ora ork orn oro orp orr ors ort os- osa osk osn oso osp osr oss ost ot- ota otk otn oto otp otr ots ott p-p paa pak pan pao pap par pas pat pka pkn pko pkp pkr pks pkt pn- pna pnk pnn pno pnp pnr pns pnt poa pok pon poo pop por pos pot ppa ppk ppn ppo ppp ppr pps ppt pra prk prn pro prp prr prs prt ps- psa psk psn pso psp psr pss pst pt- pta ptk ptn pto ptp ptr pts ptt ra- raa rak ran rao rap rar ras rat rkk rko rkp rks rkt rna rnn rno rnp rnr rns rnt roa rok ron roo rop ror ros rot rpa rpk rpn rpo rpp rpr rps rpt rra rrk rrn rrp rrr rrs rrt rsa rsk rsn rso rsp rsr rss rst rta rtk rtn rto rtp rtr rts rtt saa sak san sao sap sar sas sat sk- ska skk sko skp skr sks skt sna snk snn sno snp snr sns snt soa sok son soo sop sor sos sot spa spk spn spo spp spr sps spt sr- sra srk srn sro srp srr srs srt ss- ssa ssk ssn sso ssp ssr sss sst sta stk stn sto stp str sts stt taa tak tan tao tap tar tas tat tka tkk tko tkp tkr tks tkt tna tnk tnn tno tnp tnr tns tnt to- toa tok ton too top tor tos tot tpa tpk tpn tpo tpp tpr tps tpt tra trk trn tro trp trr trs trt tsa tsk tsn tso tsp tsr tss tst tta ttk ttn tto ttp ttr tts ttt