-er -ic a-a a-b a-c a-i aaa aab aac aae aai aao aar aau ab- aba abb abc abe abi abo abr abu ac- aca acb acc ace aci aco acr acu aea aeb aec aee aei aeo aer aeu ai- aia aib aic aie aii aio air aiu aoa aob aoc aoe aoi aoo aor aou ar- ara arb arc are ari aro arr aru au- aua aub auc aue aui auo aur b-u baa bab bac bae bai bao bar bau bba bbb bbc bbe bbi bbo bbr bbu bca bcb bcc bce bci bco bcr bcu be- bea beb bec bee bei beo ber beu bi- bia bib bic bie bii bio bir biu boa bob boc boe boi boo bor bou bra brb bre bri bro brr bru bua bub buc bue bui buo bur buu c-- caa cab cac cae cai cao car cau cba cbb cbc cbe cbi cbo cbr cbu cca ccb ccc cce cci cco ccr ccu ce- cea ceb cec cee cei ceo cer ceu ci- cia cib cic cie cii cio cir ciu co- coa cob coc coe coi coo cor cou cra crb crc cre cri cro crr cru cua cub cuc cue cui cuo cur cuu eaa eab eac eae eai eao ear eau eba ebb ebc ebe ebi ebo ebr ebu ec- eca ecb ecc ece eci eco ecr ecu eea eeb eec eee eeo eer eia eib eic eie eii eio eir eiu eo- eoa eob eoc eoe eoi eoo eor eou era erb erc ere eri ero err eru eu- eua eub euc eue eui eur ia- iaa iab iac iae iai iao iar iau iba ibb ibc ibe ibi ibo ibr ibu ica icb icc ice ici ico icr icu ie- iea iec iee iei ier iia iib iic iie iii iio iir iiu io- ioa iob ioc ioe ioi ioo ior iou ir- ira irb irc ire iri iro irr iru iu- iua iub iuc iue iui iur o-i oaa oab oac oae oai oao oar oau ob- oba obb obc obe obi obo obr obu oc- oca ocb occ oci oco ocr ocu oea oeb oec oee oei oeo oer oia oib oic oie oii oio oir oiu oo- ooa oob ooc ooi ooo oor or- ora orb orc ore ori oro orr oru ou- oua ouc oue oui ouo our ra- raa rab rac rae rai rao rar rau rba rbb rbc rbe rbi rbo rbr rbu rca rcb rcc rce rci rco rcr rcu re- rea reb rec ree rei reo rer reu ria rib ric rie rii rio rir roa rob roc roe roi roo ror rou rra rrb rrc rri rrr rru rua rub ruc rue rui ruo rur ruu ua- uaa uab uac uae uai uao uar uau uba ubb ubc ube ubi ubo ubr ubu uca ucb ucc uce uci uco ucr ucu uea ueb uec uee uei uer uia uib uic uie uii uio uir uiu uoa uob uoc uoe uoo uor ur- ura urb urc ure uri uro urr uru uua uuc uue uur uuu

a-be a-ii aaaa aaab aaac aaae aaai aaar aaba aabb aabc aabi aaca aacb aacc aace aaci aaco aacr aacu aaea aaec aaib aaic aaii aaoe aaoo aara aarc aare aari aaro aaru abaa abab abac abae abai abar abau abb- abba abbb abbe abbi abbo abbr abca abcb abcc abci abcr abec abee aber abia abib abic abie abir abiu aboa abob aboo abor abou abra abrc abri abro abua abue acaa acab acac acae acai acar acba acca accc acce acci acco accu ace- acea acec acer aci- acia acic acie acir acoa acoe acor acou acr- acra acrc acre acri acro acrr acu- acue acuo acur aeac aebi aecb aeci aeer aeio aer- aera aerc aeri aero aiai aiba aibo aica aicc aice aicr aiea aiee aiia aiib aiic aiir aioc aioi aira aire airi airo aiui aoba aoca aoce aoeu aora aorb arab arac arae arai arar arau arba arbe arbi arc- arca arce arci arco area arec aree arei areo areu aria arib arie arii ario aroa arob aroe aroi aroo aror arr- arra arrc arre arri arro arrr arru arua arub arue arui auaa aube auca auce auci auer aur- aura aure auri auro ba-i baaa baar baba babb babe babi babo babr babu bac- baca bacc bace baci baco baer baia baib baic baie baio bair bar- bara barb barc bare bari baro barr baru bau- baur bbau bbbb bbci bbeb bbrc bcaa bcar bcbc bcca bccc bcci bcec bcer bcia bcie bcor bcra bcru bcuc bear beau beba bebb bebe bebi bebo beca beci becu beeb beer beia beic beir beo- beor bera berc bere beri bero berr beru beur biao biar biba bibb bibe bibi bibo bica bicc bice bici bico bieb bier bieu bio- bioc bioi biou bira birb bire biri biro birr biru boab boac boai boar boba bobb bobe bobi bobo bobu boca boce boco bocu boea boec boee boeo boer boi- boie boii boiu boob booc booe boor bor- bora bore bori boro borr boru boua boue bour brab brac brae brai brao brau brca brcb brce brea breb brec bree brei breo brer bria bric brie brio broa brob broc broe broo bror brou brrr bruc brue buar buba bubb bube bubi bubo bubu buca bucc buce buci buco bucu buea buer bueu buic buie buir buiu bur- bura burb bure buri buro burr buru c-bo caaa caab caac caba cabe cabi cabo cabu cac- caca cacc cace caci caco cacr caec caei caer caeu caia caib caic caio cair caiu caoi caor cara carb carc care cari caro carr cauc cauo cbac cbar cbbc cbca cbcc cbce cbcr cbcu cbea cbec cbee cber cbia cbir cbre ccaa ccab ccac ccai ccar ccba ccbc ccca cccb cccc ccci cccu ccee ccic ccii ccir ccob ccoc ccra ccrc ccre ccri ccuc ceac cear ceba cebu cec-