-er -up ddd dde ddn ddo ddp ddr ddt ddu ddx de- ded dee den deo dep der det deu dex dnd dne dnn dno dnp dnr dnt dod doe don doo dop dor dot dou dox dpd dpe dpn dpo dpp dpr dpt dpu drd dre drn dro drp drr drt dru drx dtd dte dtn dto dtp dtr dtt dtu dtx dud due dun duo dup dur dut dux dxd dxn dxo dxp dxr dxt dxx ed- edd ede edn edo edp edr edt edu edx eed eee een eeo eep eer eet eex en- end ene enn eno enp enr ent enu eo- eod eoe eon eoo eop eor eot eou ep- epd epe epn epo epp epr ept epu epx erd ere ern ero erp err ert eru etd ete etn eto etp etr ett etu etx eu- eud eue eun eup eur eut eux ex- exd exe exo exp exr ext exu exx ndd nde ndn ndo ndp ndr ndt ndu ne- ned nee nen neo nep ner net neu nex nne nnn nno nnp nnt nnu no- nod noe non noo nop nor not nou nox npd npe npn npo npp npr npt npu nrd nre nrn nro nrp nrr nrt nru nrx ntd nte ntn nto ntp ntr ntt ntu ntx nud nue nun nuo nup nur nut nuu nux nxd nxt odd ode odn odo odp odr odt odu oed oee oen oeo oep oer oet oex on- ond one onn ono onp onr ont onu onx oo- ood oon ooo oop oor oot oox op- opd ope opn opo opp opr opt opx or- ord ore orn oro orp orr ort oru orx ot- otd ote otn oto otp otr ott otu ou- oud oue oun ouo oup our out ox- oxn oxo oxt oxx p-p pdd pde pdn pdo pdp pdr pdt pdu pdx ped pee pen peo pep per pet peu pex pn- pnd pne pnn pno pnp pnr pnt pnu pnx pod poe pon poo pop por pot pou pox ppd ppe ppn ppo ppp ppr ppt ppu ppx prd pre prn pro prp prr prt pru prx pt- ptd pte ptn pto ptp ptr ptt ptu ptx pud pue pun pup pur put puu pxe pxr pxt rdd rde rdn rdo rdp rdr rdt rdu rdx re- red ree ren reo rep rer ret reu rex rnd rnn rno rnp rnr rnt rnu rod roe ron roo rop ror rot rou rox rpd rpe rpn rpo rpp rpr rpt rpu rpx rrd rrn rrp rrr rrt rru rtd rte rtn rto rtp rtr rtt rtu rtx rud rue run ruo rup rur rut ruu rux rxp rxr t-x tdd tde tdn tdo tdp tdr tdt tdu tdx te- ted tee ten teo tep ter tet teu tex tnd tne tnn tno tnp tnr tnt tnx to- tod toe ton too top tor tot tou tox tpd tpe tpn tpo tpp tpr tpt tpu tpx trd tre trn tro trp trr trt tru trx ttd tte ttn tto ttp ttr ttt ttu ttx tud tue tun tuo tup tur tut tuu tux txe txn txt txu udd ude udn udo udp udr udt udu udx ued uee uen uep uer uet un- und une unn uno unp unr unt unu unx uod uoe uon uoo uop uor uot uox up- upd upe upn upo upp upr upt upu upx ur- urd ure urn uro urp urr urt uru urx utd ute utn uto utp utr utt utu utx uue uun uur uut uuu uxo uxr uxt uxu xde xdr xdt xed xee xen xep xer xet xeu xex xno xnu xod xon xoo xop xor xot xox xpd xpe xpn xpo xpp xpt xrd xrt xrx xtp xtr xtx xue xun xup xxo xxp xxx