-er -ic a-a a-b a-c a-i aaa aab aac aad aae aag aai aao aar ab- aba abb abc abd abe abg abi abo abr ac- aca acb acc acd ace acg aci aco acr ad- ada adb adc add ade adg adi ado adr aea aeb aec aed aee aeg aei aeo aer ag- aga agb agc agd age agg agi ago agr ai- aia aib aic aid aie aig aii aio air aoa aob aoc aod aoe aog aoi aoo aor ar- ara arb arc ard are arg ari aro arr baa bab bac bad bae bag bai bao bar bba bbb bbc bbd bbe bbg bbi bbo bbr bca bcb bcc bcd bce bcg bci bco bcr bda bdb bdc bdd bde bdg bdi bdo bdr be- bea beb bec bed bee beg bei beo ber bga bgb bgc bgd bge bgg bgi bgo bgr bi- bia bib bic bid bie big bii bio bir boa bob boc bod boe bog boi boo bor bra brb brd bre brg bri bro brr c-- caa cab cac cad cae cag cai cao car cba cbb cbc cbd cbe cbg cbi cbo cbr cca ccb ccc ccd cce ccg cci cco ccr cda cdb cdc cdd cde cdg cdi cdo cdr ce- cea ceb cec ced cee ceg cei ceo cer cga cgb cgc cgd cge cgg cgi cgo cgr ci- cia cib cic cid cie cig cii cio cir co- coa cob coc cod coe cog coi coo cor cra crb crc crd cre crg cri cro crr daa dab dac dad dae dag dai dao dar dba dbb dbc dbd dbe dbg dbi dbo dbr dca dcb dcc dcd dce dcg dci dco dcr dda ddb ddc ddd dde ddg ddi ddo ddr de- dea deb dec ded dee deg dei deo der dga dgc dgd dge dgg dgi dgr di- dia dib dic did die dig dii dio dir doa dob doc dod doe dog doi doo dor dra drb drc drd dre drg dri dro drr eaa eab eac ead eae eag eai eao ear eba ebb ebc ebd ebe ebg ebi ebo ebr ec- eca ecb ecc ecd ece ecg eci eco ecr ed- eda edb edc edd ede edg edi edo edr eea eeb eec eed eee eeg eeo eer ega egb egc egd ege egg egi ego egr eia eib eic eid eie eig eii eio eir eo- eoa eob eoc eod eoe eog eoi eoo eor era erb erc erd ere erg eri ero err g-d gaa gab gac gad gae gag gai gao gar gba gbc gbd gbe gbg gbi gbo gbr gca gcb gcc gcd gce gcg gci gco gcr gda gdb gdc gdd gde gdi gdo gdr ge- gea geb gec ged gee geg gei geo ger gga ggb ggc ggd ggg ggi ggo ggr gia gib gic gid gie gig gii gio gir goa gob goc god goe gog goi goo gor gra grb grc grd gre grg gri gro grr i-d ia- iaa iab iac iad iae iag iai iao iar iba ibb ibc ibd ibe ibg ibi ibo ibr ica icb icc icd ice icg ici ico icr ida idb idc idd ide idg idi ido idr ie- iea iec ied iee ieg iei ier iga igb igc igd ige igg igi igo igr iia iib iic iid iie iii iio iir io- ioa iob ioc iod ioe iog ioi ioo ior ir- ira irb irc ird ire irg iri iro irr o-i oaa oab oac oad oae oag oai oao oar ob- oba obb obc obd obe obg obi obo obr oc- oca ocb occ ocd ocg oci oco ocr oda odb odc odd ode odg odi odo odr oea oeb oec oed oee oeg oei oeo oer oga ogc ogd oge ogg ogi ogo oia oib oic oid oie oii oio oir oo- ooa oob ooc ood oog ooi ooo oor or- ora orb orc ord ore org ori oro orr ra- raa rab rac rad rae rag rai rao rar rba rbb rbc rbd rbe rbg rbi rbo rbr rca rcb rcc rcd rce rcg rci rco rcr rda rdb rdc rdd rde rdg rdi rdo rdr re- rea reb rec red ree reg rei reo rer rga rgb rgc rgd rge rgg rgi rgo rgr ria rib ric rid rie rig rii rio rir roa rob roc rod roe rog roi roo ror rra rrb rrc rrd rrg rri rrr

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 aada aadc aade aadi aaea aaec aage aaib aaic aaii aaoe aaoo aara aarc aard aare aari aaro abaa abab abac abad abae abag abai abar abb- abba abbb abbe abbi abbo abbr abca abcb abcc abcd abci abcr abda abdi abdo abec abed abee aber abgd abia abib abic abid abie abig abir aboa abob abod aboo abor abra abrc abri abro acaa acab acac acad acae acag acai acar acba acca accc accd acce acci acco acda acdb acdc acde acdi ace- acea acec aced acer acga acgi acgr aci- acia acic acid acie acir acoa acod acoe acog acor acr- acra acrc acre acri acro acrr adaa adab adac adad adae adag adai adao adar adba adbc adbi adcc adci adda addc addd adde addi addo addr adea adeb adee adeo ader adia adib adic adie adig adio adir adob adoc adod adoe adog adoo ador adra adre adro aeac aebi aecb aeci aede aeer aega aeio aer- aera aerc aerd aeri aero ag-o agac agad agag agai agao agar agba agbo agca agcc agce agco agda agde agea aged agee agei ager agga agge aggi agia agib agic agid agie agig agii agio agir agob agod agog agoo agra agre agri agro aiai aiba aibo aica aicc aicd aice aicr aida aidb aidc aide aidi aidr aiea aiee aiga aigo aiia aiib aiic aiid