-er -up a-a aaa aad aae aao aap aar aau aax ad- ada add ade ado adp adr adu adx aea aed aee aeo aep aer aeu aex aoa aod aoe aoo aop aor aou aox ap- apa apd ape apo app apr apu apx ar- ara ard are aro arp arr aru arx au- aua aud aue auo aup aur aux ax- axa axe axo axp axr axx daa dad dae dao dap dar dau dax dda ddd dde ddo ddp ddr ddu ddx de- dea ded dee deo dep der deu dex doa dod doe doo dop dor dou dox dpa dpd dpe dpo dpp dpr dpu dra drd dre dro drp drr dru drx dua dud due duo dup dur dux dxd dxo dxp dxr dxx eaa ead eae eao eap ear eau eax ed- eda edd ede edo edp edr edu edx eea eed eee eeo eep eer eex eo- eoa eod eoe eoo eop eor eou ep- epa epd epe epo epp epr epu epx era erd ere ero erp err eru eu- eua eud eue eup eur eux ex- exa exd exe exo exp exr exu exx oaa oad oae oao oap oar oau oax oda odd ode odo odp odr odu oea oed oee oeo oep oer oex oo- ooa ood ooo oop oor oox op- opa opd ope opo opp opr opx or- ora ord ore oro orp orr oru orx ou- oua oud oue ouo oup our ox- oxa oxo oxx p-p paa pad pae pao pap par pau pax pda pdd pde pdo pdp pdr pdu pdx pea ped pee peo pep per peu pex poa pod poe poo pop por pou pox ppa ppd ppe ppo ppp ppr ppu ppx pra prd pre pro prp prr pru prx pua pud pue pup pur puu pxe pxr ra- raa rad rae rao rap rar rau rax rda rdd rde rdo rdp rdr rdu rdx re- rea red ree reo rep rer reu rex roa rod roe roo rop ror rou rox rpa rpd rpe rpo rpp rpr rpu rpx rra rrd rrp rrr rru rua rud rue ruo rup rur ruu rux rxp rxr ua- uaa uad uae uao uap uar uau uda udd ude udo udp udr udu udx uea ued uee uep uer uoa uod uoe uoo uop uor uox up- upa upd upe upo upp upr upu upx ur- ura urd ure uro urp urr uru urx uua uue uur uuu uxo uxr uxu xaa xad xap xar xau xda xde xdr xed xee xep xer xeu xex xoa xod xoo xop xor xox xpa xpd xpe xpo xpp xrd xrx xue xup xxo xxp xxx