-er a-a a-b a-i aaa aab aad aae aaf aag aai aar ab- aba abb abd abe abf abg abi abr ad- ada adb add ade adf adg adi adr aea aeb aed aee aef aeg aei aer af- afa afb afd afe aff afg afi afr ag- aga agb agd age agf agg agi agr ai- aia aib aid aie aif aig aii air ar- ara arb ard are arf arg ari arr baa bab bad bae baf bag bai bar bba bbb bbd bbe bbf bbg bbi bbr bda bdb bdd bde bdf bdg bdi bdr be- bea beb bed bee bef beg bei ber bfa bfb bfd bfe bff bfg bfi bfr bga bgb bgd bge bgf bgg bgi bgr bi- bia bib bid bie bif big bii bir bra brb brd bre brf brg bri brr daa dab dad dae daf dag dai dar dba dbb dbd dbe dbf dbg dbi dbr dda ddb ddd dde ddf ddg ddi ddr de- dea deb ded dee def deg dei der dfa dfb dfd dfe dff dfg dfi dfr dga dgd dge dgf dgg dgi dgr di- dia dib did die dif dig dii dir dra drb drd dre drg dri drr eaa eab ead eae eaf eag eai ear eba ebb ebd ebe ebf ebg ebi ebr ed- eda edb edd ede edf edg edi edr eea eeb eed eee eef eeg eer ef- efa efb efd efe eff efg efi efr ega egb egd ege egf egg egi egr eia eib eid eie eif eig eii eir era erb erd ere erf erg eri err faa fab fad fae faf fag fai far fba fbb fbd fbe fbf fbg fbi fbr fda fdb fdd fde fdf fdg fdi fdr fea feb fed fee fef feg fei fer ffa ffd ffe fff ffg ffi ffr fga fgb fgd fge fgf fgg fgi fgr fia fib fid fie fif fig fii fir fra frb frd fre frf frg fri frr g-d gaa gab gad gae gaf gag gai gar gba gbd gbe gbf gbg gbi gbr gda gdb gdd gde gdf gdi gdr ge- gea geb ged gee gef geg gei ger gfa gfb gfd gfe gff gfi gfr gga ggb ggd ggg ggi ggr gia gib gid gie gif gig gii gir gra grb grd gre grf grg gri grr i-d i-f ia- iaa iab iad iae iaf iag iai iar iba ibb ibd ibe ibf ibg ibi ibr ida idb idd ide idf idg idi idr ie- iea ied iee ief ieg iei ier ifa ifb ifd ife iff ifg ifi ifr iga igb igd ige igf igg igi igr iia iib iid iie iif iii iir ir- ira irb ird ire irf irg iri irr ra- raa rab rad rae raf rag rai rar rba rbb rbd rbe rbf rbg rbi rbr rda rdb rdd rde rdf rdg rdi rdr re- rea reb red ree ref reg rei rer rfa rfb rfd rfe rff rfg rfi rfr rga rgb rgd rge rgf rgg rgi rgr ria rib rid rie rif rig rii rir rra rrb rrd rrf rrg rri rrr

a-be a-ii aaaa aaab aaad aaae aaaf aaai aaar aaba aabb aabd aabi aada aade aadi aaea aafa aafb aafd aaff aafi aage aaib aaii aara aard aare aari abaa abab abad abae abaf abag abai abar abb- abba abbb abbe abbi abbr abda abdi abed abee aber abff abgd abia abib abid abie abig abir abra abri adaa adab adad adae adag adai adar adba adbi adda addd adde addi addr adea adeb adee ader adfa adia adib adie adif adig adir adra adre aeaf aebi aede aeer aega aer- aera aerd aeri afaa afad afar afdb afee afer affa affi afgf afia afib afid afif afig afir afr- afra afre afri agad agag agai agar agba agda agde agea aged agee agei ager agfa agga agge aggi agia agib agid agie agig agii agir agra agre agri aiai aiba aida aidb aide aidi aidr aiea aiee aifd aiff aiga aiia aiib aiid aiir aira aird aire airi arab arad arae araf arag arai arar arba arbe arbi arda arde ardf ardi area ared aree aref areg arei arfa arfb arff arga argb arge argi aria arib arid arie arif arig arii arr- arra arre arrg arri arrr ba-i baaa baad baaf baar baba babb babe babi babr bada badb badd bade badi badr baed baer baff baga bage bagg bagi baia baib baid baie baig bair bar- bara barb bard bare barf barg bari barr bbad bbbb bbdd bbeb bbga bbrg bd-r bdii bead beaf beag bear beba bebb bebe bebi beda bede bedi beeb beed beef beeg beer befa befe beff bega begg begi beia beir bera berd bere berg beri berr bfgf bgia biad biaf biar biba bibb bibe bibi bida bide bidi bidr bieb bied bief bier bifa biff bifi biga bigb bigd bige bigg bira birb bird bire birg biri birr brab brad brae braf brag brai brda brea breb bred bree bref breg brei brer bria brid brie brig brrr daab daad daae daag daar daba dabb dada dade dadi daeb daer dafa dafe daff dafi daga dage dagg dagi dagr daia daid daie daig dair dara darb dard dare darf darg dari darr dbag dbar dddd ddie ddre dead deae deaf dear deba debe debi deda dedd dede dedi deeb deed deef deeg deer defe deff defg defi dega dege degi deid deie deif deir der- dera derb dere derf derg deri derr dfaf dfer dffa dfrf dfri dgeg dgge dgia dia- diab diad diaf diag diar diba dibb dibe dida dide didi diea dieb died dief dier dif- difa diff diga dige digg digi diii dira dird dire dirr draa drab drad draf drag drar drba drda drea dred dree dref dreg drei drge drib drie drif drra eaaf eaba eada eadb eadd eadi eafb eaga eage eaif eara earb eard eare ebba ebbr ebed eber