-er a-a a-b aaa aab aad aae aan aao aar aau aaw ab- aba abb abd abe abn abo abr abu abw ad- ada adb add ade adn ado adr adu adw aea aeb aed aee aen aeo aer aeu aew an- ana anb and ane ann ano anr anu aoa aob aod aoe aon aoo aor aou aow ar- ara arb ard are arn aro arr aru arw au- aua aub aud aue aun auo aur auw aw- awa awb awd awe awn awo awr awu aww b-u baa bab bad bae ban bao bar bau baw bba bbb bbd bbe bbn bbo bbr bbu bbw bda bdb bdd bde bdo bdr bdu bdw be- bea beb bed bee ben beo ber beu bew bna bnb bnd bne bnn bno bnr bnu bnw boa bob bod boe bon boo bor bou bow bra brb brd bre brn bro brr bru brw bua bub bud bue bun buo bur buu buw bwa bwb bwd bwo bwr bwu daa dab dad dae dan dao dar dau daw dba dbb dbd dbe dbn dbo dbr dbu dda ddb ddd dde ddn ddo ddr ddu ddw de- dea deb ded dee den deo der deu dew dna dnb dnd dne dnn dno dnr dnw doa dob dod doe don doo dor dou dow dra drb drd dre drn dro drr dru drw dua dub dud due dun duo dur dwa dwb dwe dwn dwo dwr dwu dww eaa eab ead eae ean eao ear eau eaw eba ebb ebd ebe ebn ebo ebr ebu ebw ed- eda edb edd ede edn edo edr edu edw eea eeb eed eee een eeo eer eew en- ena enb end ene enn eno enr enu enw eo- eoa eob eod eoe eon eoo eor eou eow era erb erd ere ern ero err eru erw eu- eua eub eud eue eun eur ewa ewb ewd ewe ewo ewr ewu eww naa nab nad nae nan nao nar nau naw nba nbb nbd nbe nbn nbo nbr nbu nbw nda ndb ndd nde ndn ndo ndr ndu ne- nea neb ned nee nen neo ner neu new nna nnb nne nnn nno nnu nnw no- noa nob nod noe non noo nor nou now nra nrb nrd nre nrn nro nrr nru nrw nua nub nud nue nun nuo nur nuu nwa nwb nwd nwe nwn nwo nwr nwu oaa oab oad oae oan oao oar oau oaw ob- oba obb obd obe obn obo obr obu obw oda odb odd ode odn odo odr odu oea oeb oed oee oen oeo oer on- ona onb ond one onn ono onr onu oo- ooa oob ood oon ooo oor oow or- ora orb ord ore orn oro orr oru ou- oua oud oue oun ouo our owa owb owd owe own owo owu oww ra- raa rab rad rae ran rao rar rau raw rba rbb rbd rbe rbn rbo rbr rbu rbw rda rdb rdd rde rdn rdo rdr rdu re- rea reb red ree ren reo rer reu rew rna rnb rnd rnn rno rnr rnu rnw roa rob rod roe ron roo ror rou row rra rrb rrd rrn rrr rru rua rub rud rue run ruo rur ruu rwa rwb rwd rwe rwr rwu ua- uaa uab uad uae uan uao uar uau uaw uba ubb ube ubn ubo ubr ubu ubw uda udb udd ude udn udo udr udu uea ueb ued uee uen uer uew un- una unb und une unn uno unr unu unw uoa uob uod uoe uon uoo uor uow ur- ura urb urd ure urn uro urr uru urw uua uue uun uur uuu uwa uwb uwe uwn uwr uww waa wab wad wae wan wao war wau waw wba wbb wbd wbe wbn wbo wbr wbw wda wdb wdr wdu wea web wed wee wen weo wer wew wn- wna wnd wne wnn wno wnu wnw woa wob wod woe won woo wor wou wow wr- wra wrd wre wrn wro wrr wru wrw wua wub wud wue wun wuo wur wwa wwd wwe wwn wwo wwu www