-er -ol ddd dde ddi ddl ddo ddr dds ddu ddx de- ded dee dei del deo der des deu dex di- did die dii dil dio dir dis diu dix dl- dld dle dli dll dlo dlr dls dlu dlx dod doe doi dol doo dor dos dou dox drd dre dri drl dro drr drs dru drx dsd dse dsi dsl dso dsr dss dsu dsx dud due dui dul duo dur dus dux dxd dxi dxl dxo dxr dxs dxx ed- edd ede edi edl edo edr eds edu edx eed eee eel eeo eer ees eex eid eie eii eil eio eir eis eiu eix eld ele eli ell elo elr els elu elx eo- eod eoe eoi eol eoo eor eos eou erd ere eri erl ero err ers eru es- esd ese esi esl eso esr ess esu esx eu- eud eue eui eul eur eus eux ex- exd exe exi exl exo exr exs exu exx i-d idd ide idi idl ido idr ids idu idx ie- ied iee iei iel ier ies iex iid iie iii iil iio iir iis iiu iix il- ild ile ili ill ilo ilr ils ilu ilx io- iod ioe ioi iol ioo ior ios iou ir- ird ire iri irl iro irr irs iru irx is- isd ise isi isl iso isr iss isu iu- iud iue iui iur ius ixe ixi ixl ldd lde ldi ldl ldo ldr lds ldu led lee lei lel leo ler les leu lex lid lie lii lil lio lir lis liu lix lld lle lli lll llo llr lls llu lod loe loi lol loo lor los lou lox lrd lri lro lrr lrs lru lsd lse lsi lsl lso lsr lss lsu lud lue lui lul luo lur lus luu lux lxd lxi lxo lxr lxx o-i odd ode odi odl odo odr ods odu oed oee oei oel oeo oer oes oex oid oie oii oil oio oir ois oiu old ole oli oll olo ols olu oo- ood ooi ool ooo oor oos oox or- ord ore ori orl oro orr ors oru orx os- osd ose osi osl oso osr oss osu osx ou- oud oue oui oul ouo our ous ox- oxi oxo oxx rdd rde rdi rdl rdo rdr rds rdu rdx re- red ree rei rel reo rer res reu rex rid rie rii ril rio rir ris rix rld rle rli rll rlo rlr rls rlu rod roe roi rol roo ror ros rou rox rrd rri rrl rrr rrs rru rsd rse rsi rsl rso rsr rss rsu rsx rud rue rui ruo rur rus ruu rux rxr rxs sdd sde sdi sdl sdo sdr sds sdu se- sed see sei sel seo ser ses seu sex sid sie sii sil sio sir sis siu six sld sle sli sll slo slr sls slu slx sod soe soi sol soo sor sos sou sox sr- srd sre sri srl sro srr srs srx ss- ssd sse ssi ssl sso ssr sss ssu ssx sud sue sui sul suo sur sus suu sux sxi sxl sxs sxu udd ude udi udl udo udr uds udu udx ued uee uei uel uer ues uid uie uii uil uio uir uis uiu uld ule uli ull ulo ulr uls ulu uod uoe uol uoo uor uos uox ur- urd ure uri url uro urr urs uru urx usd use usi usl uso usr uss usu usx uue uur uus uuu uxo uxr uxu xde xdi xdr xds xed xee xel xer xes xeu xex xie xii xio xis xiu xix xld xli xlr xls xod xoi xoo xor xos xox xrd xrx xsi xsl xss xue xui xul xus xxi xxl xxo xxx