-er a-a a-b a-i a-t aaa aab aae aai aao aar aat aav ab- aba abb abe abi abo abr abt abv aea aeb aee aei aeo aer aet aev ai- aia aib aie aii aio air ait aiv aoa aob aoe aoi aoo aor aot aov ar- ara arb are ari aro arr art arv at- ata atb ate ati ato atr att atv av- ava avb ave avi avo avr avt baa bab bae bai bao bar bat bav bba bbb bbe bbi bbo bbr bbt be- bea beb bee bei beo ber bet bev bi- bia bib bie bii bio bir bit biv boa bob boe boi boo bor bot bov bra brb bre bri bro brr brt brv bta btb bte bti bto btr btt btv bva bvb bve bvi bvo bvr bvt bvv eaa eab eae eai eao ear eat eav eba ebb ebe ebi ebo ebr ebt ebv eea eeb eee eeo eer eet eev eia eib eie eii eio eir eit eiv eo- eoa eob eoe eoi eoo eor eot era erb ere eri ero err ert erv eta etb ete eti eto etr ett etv eva evb eve evi evo evr evt evv i-v ia- iaa iab iae iai iao iar iat iav iba ibb ibe ibi ibo ibr ibt ibv ie- iea iee iei ier iet iev iia iib iie iii iio iir iit io- ioa iob ioe ioi ioo ior iot iov ir- ira irb ire iri iro irr irt irv ita itb ite iti ito itt itv iva ivb ive ivi ivo ivr ivt ivv o-i oaa oab oae oai oao oar oat oav ob- oba obb obe obi obo obr obt obv oea oeb oee oei oeo oer oet oia oib oie oii oio oir oit oiv oo- ooa oob ooi ooo oor oot oov or- ora orb ore ori oro orr ort orv ot- ota otb ote oti oto otr ott otv ov- ova ovb ove ovi ovo ovv ra- raa rab rae rai rao rar rat rav rba rbb rbe rbi rbo rbr rbt re- rea reb ree rei reo rer ret rev ria rib rie rii rio rir rit riv roa rob roe roi roo ror rot rov rra rrb rri rrr rrt rta rtb rte rti rto rtr rtt rtv rva rvb rve rvi rvo rvr rvt rvv taa tab tae tai tao tar tat tav tba tbb tbe tbi tbo tbr tbt tbv te- tea teb tee tei teo ter tet tev tia tib tie tii tio tir tit tiv to- toa tob toe toi too tor tot tov tra trb tre tri tro trr trt trv tta ttb tte tti tto ttr ttt ttv tva tvb tve tvi tvo tvr tvt v-a v-e vaa vab vae vai vao var vat vav vba vbi vbo vbr vbv vea veb vee vei veo ver vet vi- via vib vie vii vio vir vit viv voa vob voe voi voo vor vot vov vra vrb vre vri vrr vrt vta vtb vte vti vto vtr vtt vtv vva vvb vvi vvo vvr vvt vvv

a-be a-ii a-iv aaaa aaab aaae aaai aaar aaav aaba aabb aabi aabt aaea aaev aaib aaii aaoe aaoo aara aare aari aaro aart aata aatt aava abaa abab abae abai abar abat abb- abba abbb abbe abbi abbo abbr abbt abee aber abet abia abib abie abir abit aboa abob aboo abor abot abov abra abri abro abta abva aebi aeer aeio aeit aer- aera aeri aero aeta aeto aetr aett aeva aiai aiba aibo aiea aiee aiet aiia aiib aiir aioi aira aire airi airo airt aita aite aiti aitr aitt aiva aoba aora aorb aort arab arae arai arar arat arba arbe arbi area aree arei areo aret arev aria arib arie arii ario arit aroa arob aroe aroi aroo aror arr- arra arre arri arro arrr arrt arta arte arti arto artr artv arva arve arvi arvo at-t ataa atab atae atai atar atat atea atee atei ateo ater atia atie atit atob atoe atoi ator atot atra atre atri atro atta atte atti atto attr atvi avab avao avar avat avea aveo aver avia avie avio avit aviv avor avot avra avre avri avro avva avvo ba-i baaa baar baat baba babb babe babi babo babr baer baia baib baie baio bair bait bar- bara barb bare bari baro barr bart bata bate bati bato batt bava bave bavi bbbb bbeb bbet bear beat beav beba bebb bebe bebi bebo beeb beer beet beia beir beit beo- beor beot bera bere beri bero berr bert beta bete beti beto bett betv bevo biao biar biat biba bibb bibe bibi bibo bieb bier biet bio- bioi biot bira birb bire biri biro birr birt bita bite bito bitt bive bivi boab boai boar boat boba bobb bobe bobi bobo boea boee boeo boer boet boi- boie boii boit boob booe boor boot bor- bora bore bori boro borr bort bota botb bote boti boto bott bova bove bovi bovo brab brae brai brao brat brav brea breb bree brei breo brer bret brev bria brie brio brit broa brob broe broo bror brot brrr brvi btaa btie btob btor btrt bttb btvi eaba eara earb eare earo eart eata eate eati eave ebba ebbo ebbr eber ebit eboe eboo ebor ebro eeea eeee eera eero eeta eete eeva eiao eiei eier eira eire eita eitb eiti eito eitr eoir eora eore eori eota eoto erat erba erbb erbe ereb erei erer eret erev eria erie erio erit erob eroe eroi eroo erra erre erro erta erve ervi etai etat etbr etee eter etio etoe etra etre etro etta ette etti etto etvo evae evar evat evea ever evet evia evie evir evoe evoo evra evre i-be iaaa iaai iaat iaba iaea iaia iara iare iart iata iate iati iava ibar ibat ibea ibet ibia ibie ibot ibra ibri ibro ibtb ieat ieet ieie ieio iera iere ieri