-er a-a a-b aaa aab aad aae aag aah aao aar aau ab- aba abb abd abe abg abh abo abr abu ad- ada adb add ade adg adh ado adr adu aea aeb aed aee aeg aeh aeo aer aeu ag- aga agb agd age agg agh ago agr agu aha ahb ahd ahe ahg ahh aho ahr ahu aoa aob aod aoe aog aoh aoo aor aou ar- ara arb ard are arg arh aro arr aru au- aua aub aud aue aug auh auo aur b-u baa bab bad bae bag bah bao bar bau bba bbb bbd bbe bbg bbh bbo bbr bbu bda bdb bdd bde bdg bdh bdo bdr bdu be- bea beb bed bee beg beh beo ber beu bga bgb bgd bge bgg bgh bgo bgr bgu bha bhb bhd bhe bhg bhh bho bhr bhu boa bob bod boe bog boh boo bor bou bra brb brd bre brg brh bro brr bru bua bub bud bue bug buh buo bur buu daa dab dad dae dag dah dao dar dau dba dbb dbd dbe dbg dbh dbo dbr dbu dda ddb ddd dde ddg ddh ddo ddr ddu de- dea deb ded dee deg deh deo der deu dga dgd dge dgg dgh dgr dgu dh- dha dhb dhd dhe dhh dho dhr dhu doa dob dod doe dog doh doo dor dou dra drb drd dre drg dro drr dru dua dub dud due dug duh duo dur eaa eab ead eae eag eah eao ear eau eba ebb ebd ebe ebg ebh ebo ebr ebu ed- eda edb edd ede edg edh edo edr edu eea eeb eed eee eeg eeo eer ega egb egd ege egg egh ego egr egu eha ehb ehd ehe ehg ehh eho ehr ehu eo- eoa eob eod eoe eog eoh eoo eor eou era erb erd ere erg erh ero err eru eu- eua eub eud eue eug eur g-d gaa gab gad gae gag gah gao gar gau gba gbd gbe gbg gbh gbo gbr gbu gda gdb gdd gde gdh gdo gdr gdu ge- gea geb ged gee geg geh geo ger geu gga ggb ggd ggg ggh ggo ggr ggu gha ghb ghd ghe ghg ghh gho ghr goa gob god goe gog goh goo gor gou gra grb grd gre grg grh gro grr gru gu- gua gub gud gue gug guo gur guu haa hab had hae hag hah hao har hau hba hbb hbd hbe hbg hbh hbo hbr hbu hda hdb hdd hde hdg hdh hdo hdr hdu he- hea heb hed hee heg heh heo her heu hga hgb hge hgg hgh hgo hgr hgu hha hhb hhd hhe hhg hhh hho hhr hhu hoa hob hod hoe hog hoh hoo hor hou hr- hra hrb hrd hre hrg hrh hro hrr hru hua hub hud hue hug huh huo hur huu oaa oab oad oae oag oah oao oar oau ob- oba obb obd obe obg obh obo obr obu oda odb odd ode odg odh odo odr odu oea oeb oed oee oeg oeh oeo oer oga ogd oge ogg ogh ogo oha ohd ohe ohg ohh oho ohr ohu oo- ooa oob ood oog ooh ooo oor or- ora orb ord ore org orh oro orr oru ou- oua oud oue ouh ouo our ra- raa rab rad rae rag rah rao rar rau rba rbb rbd rbe rbg rbh rbo rbr rbu rda rdb rdd rde rdg rdh rdo rdr rdu re- rea reb red ree reg reh reo rer reu rga rgb rgd rge rgg rgh rgo rgr rh- rha rhb rhd rhe rhg rhh rho rhr rhu roa rob rod roe rog roh roo ror rou rra rrb rrd rrg rrh rrr rru rua rub rud rue rug ruh ruo rur ruu ua- uaa uab uad uae uag uah uao uar uau uba ubb ube ubg ubh ubo ubr ubu uda udb udd ude udg udo udr udu uea ueb ued uee ueg ueh uer uga ugb uge ugg ugh ugo ugr ugu uha uhb uhd uhe uhh uho uhr uhu uoa uob uod uoe uog uoo uor ur- ura urb urd ure urg uro urr uru uua uue uug uur uuu