-er -ic a-a a-b a-c a-i aaa aab aac aad aae aai aao aar aau ab- aba abb abc abd abe abi abo abr abu ac- aca acb acc acd ace aci aco acr acu ad- ada adb adc add ade adi ado adr adu aea aeb aec aed aee aei aeo aer aeu ai- aia aib aic aid aie aii aio air aiu aoa aob aoc aod aoe aoi aoo aor aou ar- ara arb arc ard are ari aro arr aru au- aua aub auc aud aue aui auo aur b-u baa bab bac bad bae bai bao bar bau bba bbb bbc bbd bbe bbi bbo bbr bbu bca bcb bcc bcd bce bci bco bcr bcu bda bdb bdc bdd bde bdi bdo bdr bdu be- bea beb bec bed bee bei beo ber beu bi- bia bib bic bid bie bii bio bir biu boa bob boc bod boe boi boo bor bou bra brb brd bre bri bro brr bru bua bub buc bud bue bui buo bur buu c-- caa cab cac cad cae cai cao car cau cba cbb cbc cbd cbe cbi cbo cbr cbu cca ccb ccc ccd cce cci cco ccr ccu cda cdb cdc cdd cde cdi cdo cdr cdu ce- cea ceb cec ced cee cei ceo cer ceu ci- cia cib cic cid cie cii cio cir ciu co- coa cob coc cod coe coi coo cor cou cra crb crc crd cre cri cro crr cru cua cub cuc cud cue cui cuo cur cuu daa dab dac dad dae dai dao dar dau dba dbb dbc dbd dbe dbi dbo dbr dbu dca dcb dcc dcd dce dci dco dcr dcu dda ddb ddc ddd dde ddi ddo ddr ddu de- dea deb dec ded dee dei deo der deu di- dia dib dic did die dii dio dir diu doa dob doc dod doe doi doo dor dou dra drb drc drd dre dri dro drr dru dua dub duc dud due dui duo dur eaa eab eac ead eae eai eao ear eau eba ebb ebc ebd ebe ebi ebo ebr ebu ec- eca ecb ecc ecd ece eci eco ecr ecu ed- eda edb edc edd ede edi edo edr edu eea eeb eec eed eee eeo eer eia eib eic eid eie eii eio eir eiu eo- eoa eob eoc eod eoe eoi eoo eor eou era erb erc erd ere eri ero err eru eu- eua eub euc eud eue eui eur i-d ia- iaa iab iac iad iae iai iao iar iau iba ibb ibc ibd ibe ibi ibo ibr ibu ica icb icc icd ice ici ico icr icu ida idb idc idd ide idi ido idr idu ie- iea iec ied iee iei ier iia iib iic iid iie iii iio iir iiu io- ioa iob ioc iod ioe ioi ioo ior iou ir- ira irb irc ird ire iri iro irr iru iu- iua iub iuc iud iue iui iur o-i oaa oab oac oad oae oai oao oar oau ob- oba obb obc obd obe obi obo obr obu oc- oca ocb occ ocd oci oco ocr ocu oda odb odc odd ode odi odo odr odu oea oeb oec oed oee oei oeo oer oia oib oic oid oie oii oio oir oiu oo- ooa oob ooc ood ooi ooo oor or- ora orb orc ord ore ori oro orr oru ou- oua ouc oud oue oui ouo our ra- raa rab rac rad rae rai rao rar rau rba rbb rbc rbd rbe rbi rbo rbr rbu rca rcb rcc rcd rce rci rco rcr rcu rda rdb rdc rdd rde rdi rdo rdr rdu re- rea reb rec red ree rei reo rer reu ria rib ric rid rie rii rio rir roa rob roc rod roe roi roo ror rou rra rrb rrc rrd rri rrr rru rua rub ruc rud rue rui ruo rur ruu ua- uaa uab uac uad uae uai uao uar uau uba ubb ubc ube ubi ubo ubr ubu uca ucb ucc ucd uce uci uco ucr ucu uda udb udc udd ude udi udo udr udu uea ueb uec ued uee uei uer uia uib uic uid uie uii uio uir uiu uoa uob uoc uod uoe uoo uor ur- ura urb urc urd ure uri uro urr uru uua uuc uue uur uuu

a-be a-do a-ii aaaa aaab aaac aaad aaae aaai aaar aaba aabb aabc aabd aabi aaca aacb aacc aacd aace aaci aaco aacr aacu aada aadc aade aadi aadu aaea aaec aaib aaic aaii aaoe aaoo aara aarc aard aare aari aaro aaru abaa abab abac abad abae abai abar abau abb- abba abbb abbe abbi abbo abbr abca abcb abcc abcd abci abcr abda abdi abdo abdu abec abed abee aber abia abib abic abid abie abir abiu aboa abob abod aboo abor abou abra abrc abri abro abua abud abue acaa acab acac acad acae acai acar acba acca accc accd acce acci acco accu acda acdb acdc acde acdi ace- acea acec aced acer aci- acia acic acid acie acir acoa acod acoe acor acou acr- acra acrc acre acri acro acrr acu- acue acuo acur adaa adab adac adad adae adai adao adar adba adbc adbi adcc adci adda addc addd adde addi addo addr addu adea adeb adee adeo ader adia adib adic adie adio adir adob adoc adod adoe adoo ador adra adre adro adua adub adue adur aeac aebi aecb aeci aede aeer aeio aer- aera aerc aerd aeri aero aiai aiba aibo aica aicc aicd aice aicr aida aidb aidc aide aidi aidr aidu aiea aiee aiia aiib aiic aiid aiir aioc aioi aira aird aire airi airo aiud aiui aoba aoca aoce aoeu aora aorb arab arac arad arae arai arar arau arba arbe arbi arc- arca arce arci arco arda ardc arde ardi ardo ardu area arec ared aree arei