a-a a-t aaa aaf aak aan aao aap aas aat af- afa aff afk afn afo afp afs aft aka akk akn ako akp aks an- ana anf ank ann ano anp ans ant aoa aof aok aon aoo aop aos aot ap- apa apf apk apn apo app aps apt as- asa asf ask asn aso asp ass ast at- ata atf atn ato atp ats att faa faf fak fan fao fap fas fat ffa fff ffk ffn ffo ffp ffs fft fka fkf fkk fkp fkt fna fnf fnk fnn fnp fns fnt foa fof fok fon foo fop fos fot fpa fpk fpn fpo fpp fps fpt fsa fsf fsk fsn fso fsp fss fst fta ftf ftk ftn fto ftp fts ftt k-t ka- kaa kaf kak kan kao kap kas kat kfa kff kfo kfs kkk kkn kkp kks kkt kn- kna knf knk knn kno knp knt koa kof kok kon koo kop kos kot kpa kpf kpk kpn kpo kpp kps kpt ksa ksf ksk ksn kso ksp kss kst kta ktf ktk ktn kto ktp kts ktt naa naf nak nan nao nap nas nat nfa nff nfk nfn nfo nfp nfs nft nka nkf nkk nkn nko nkp nks nkt nna nnf nnk nnn nno nnp nns nnt no- noa nof nok non noo nop nos not npa npf npn npo npp nps npt nsa nsf nsk nsn nso nsp nss nst nta ntf ntk ntn nto ntp nts ntt oaa oaf oak oan oao oap oas oat of- ofa off ofn ofo ofp ofs oft oka okk oko okp oks on- ona onf onk onn ono onp ons ont oo- ooa oof ook oon ooo oop oos oot op- opa opf opk opn opo opp ops opt os- osa osf osk osn oso osp oss ost ot- ota otf otk otn oto otp ots ott p-p paa paf pak pan pao pap pas pat pfa pff pfk pfn pfo pfp pfs pft pka pkf pkn pko pkp pks pkt pn- pna pnf pnk pnn pno pnp pns pnt poa pof pok pon poo pop pos pot ppa ppf ppk ppn ppo ppp pps ppt ps- psa psf psk psn pso psp pss pst pt- pta ptf ptk ptn pto ptp pts ptt saa saf sak san sao sap sas sat sfa sff sfk sfn sfo sfp sfs sft sk- ska skf skk sko skp sks skt sna snf snk snn sno snp sns snt soa sof sok son soo sop sos sot spa spf spk spn spo spp sps spt ss- ssa ssf ssk ssn sso ssp sss sst sta stf stk stn sto stp sts stt taa taf tak tan tao tap tas tat tfa tff tfk tfn tfo tfp tfs tft tka tkk tko tkp tks tkt tna tnf tnk tnn tno tnp tns tnt to- toa tof tok ton too top tos tot tpa tpf tpk tpn tpo tpp tps tpt tsa tsf tsk tsn tso tsp tss tst tta ttf ttk ttn tto ttp tts ttt