-er -up a-a a-t aaa aae aap aar aas aat aau aax aea aee aep aer aes aet aeu aex ap- apa ape app apr aps apt apu apx ar- ara are arp arr ars art aru arx as- asa ase asp asr ass ast asu asx at- ata ate atp atr ats att atu atx au- aua aue aup aur aus aut aux ax- axa axe axp axr axs axt axx eaa eae eap ear eas eat eau eax eea eee eep eer ees eet eex ep- epa epe epp epr eps ept epu epx era ere erp err ers ert eru es- esa ese esp esr ess est esu esx eta ete etp etr ets ett etu etx eu- eua eue eup eur eus eut eux ex- exa exe exp exr exs ext exu exx p-p paa pae pap par pas pat pau pax pea pee pep per pes pet peu pex ppa ppe ppp ppr pps ppt ppu ppx pra pre prp prr prs prt pru prx ps- psa pse psp psr pss pst psu psx pt- pta pte ptp ptr pts ptt ptu ptx pua pue pup pur pus put puu pxe pxr pxs pxt ra- raa rae rap rar ras rat rau rax re- rea ree rep rer res ret reu rex rpa rpe rpp rpr rps rpt rpu rpx rra rrp rrr rrs rrt rru rsa rse rsp rsr rss rst rsu rsx rta rte rtp rtr rts rtt rtu rtx rua rue rup rur rus rut ruu rux rxp rxr rxs saa sae sap sar sas sat sau sax se- sea see sep ser ses set seu sex spa spe spp spr sps spt spu spx sr- sra sre srp srr srs srt srx ss- ssa sse ssp ssr sss sst ssu ssx sta ste stp str sts stt stu stx sua sue sup sur sus sut suu sux sxs sxt sxu t-x taa tae tap tar tas tat tau tax te- tea tee tep ter tes tet teu tex tpa tpe tpp tpr tps tpt tpu tpx tra tre trp trr trs trt tru trx tsa tse tsp tsr tss tst tsu tsx tta tte ttp ttr tts ttt ttu ttx tua tue tup tur tus tut tuu tux txe txs txt txu ua- uaa uae uap uar uas uat uau uea uee uep uer ues uet up- upa upe upp upr ups upt upu upx ur- ura ure urp urr urs urt uru urx usa use usp usr uss ust usu usx uta ute utp utr uts utt utu utx uua uue uur uus uut uuu uxr uxt uxu xaa xap xar xas xat xau xee xep xer xes xet xeu xex xpa xpe xpp xps xpt xrt xrx xsa xsp xss xst xtp xtr xts xtx xue xup xus xxp xxx