-up a-a a-t aaa aaf aao aap aar aas aat aau aax af- afa aff afo afp afr afs aft afu afx aoa aof aoo aop aor aos aot aou aox ap- apa apf apo app apr aps apt apu apx ar- ara arf aro arp arr ars art aru arx as- asa asf aso asp asr ass ast asu asx at- ata atf ato atp atr ats att atu atx au- aua auf auo aup aur aus aut aux ax- axa axo axp axr axs axt axx faa faf fao fap far fas fat fau fax ffa fff ffo ffp ffr ffs fft ffu ffx foa fof foo fop for fos fot fou fox fpa fpo fpp fpr fps fpt fpu fpx fra frf fro frp frr frs frt fru fsa fsf fso fsp fsr fss fst fsu fsx fta ftf fto ftp ftr fts ftt ftu ftx fua fuf fuo fup fur fus fut fuu fux fxp fxr fxs fxt fxu fxx oaa oaf oao oap oar oas oat oau oax of- ofa off ofo ofp ofr ofs oft ofu ofx oo- ooa oof ooo oop oor oos oot oox op- opa opf opo opp opr ops opt opx or- ora orf oro orp orr ors ort oru orx os- osa osf oso osp osr oss ost osu osx ot- ota otf oto otp otr ots ott otu ou- oua ouf ouo oup our ous out ox- oxa oxf oxo oxt oxx p-p paa paf pao pap par pas pat pau pax pfa pff pfo pfp pfr pfs pft pfu pfx poa pof poo pop por pos pot pou pox ppa ppf ppo ppp ppr pps ppt ppu ppx pra prf pro prp prr prs prt pru prx ps- psa psf pso psp psr pss pst psu psx pt- pta ptf pto ptp ptr pts ptt ptu ptx pua puf pup pur pus put puu pxr pxs pxt ra- raa raf rao rap rar ras rat rau rax rfa rff rfo rfp rfr rfs rft rfu roa rof roo rop ror ros rot rou rox rpa rpf rpo rpp rpr rps rpt rpu rpx rra rrf rrp rrr rrs rrt rru rsa rsf rso rsp rsr rss rst rsu rsx rta rtf rto rtp rtr rts rtt rtu rtx rua ruf ruo rup rur rus rut ruu rux rxp rxr rxs saa saf sao sap sar sas sat sau sax sfa sff sfo sfp sfr sfs sft sfu sfx soa sof soo sop sor sos sot sou sox spa spf spo spp spr sps spt spu spx sr- sra srf sro srp srr srs srt srx ss- ssa ssf sso ssp ssr sss sst ssu ssx sta stf sto stp str sts stt stu stx sua suf suo sup sur sus sut suu sux sxs sxt sxu t-x taa taf tao tap tar tas tat tau tax tfa tff tfo tfp tfr tfs tft tfu tfx to- toa tof too top tor tos tot tou tox tpa tpf tpo tpp tpr tps tpt tpu tpx tra trf tro trp trr trs trt tru trx tsa tsf tso tsp tsr tss tst tsu tsx tta ttf tto ttp ttr tts ttt ttu ttx tua tuf tuo tup tur tus tut tuu tux txf txs txt txu ua- uaa uaf uao uap uar uas uat uau ufa uff ufo ufp ufr ufs uft ufu ufx uoa uoo uop uor uos uot uox up- upa upf upo upp upr ups upt upu upx ur- ura urf uro urp urr urs urt uru urx usa usf uso usp usr uss ust usu usx uta utf uto utp utr uts utt utu utx uua uur uus uut uuu uxf uxo uxr uxt uxu xaa xaf xap xar xas xat xau xfa xfs xft xfx xoa xof xoo xop xor xos xot xox xpa xpf xpo xpp xps xpt xrf xrt xrx xsa xsp xss xst xtf xtp xtr xts xtx xup xus xxo xxp xxx