a-a a-b a-i a-t aaa aab aad aai aao aar aas aat aav ab- aba abb abd abi abo abr abs abt abv ad- ada adb add adi ado adr ads adt adv ai- aia aib aid aii aio air ais ait aiv aoa aob aod aoi aoo aor aos aot aov ar- ara arb ard ari aro arr ars art arv as- asa asb asd asi aso asr ass ast asv at- ata atb atd ati ato atr ats att atv av- ava avb avd avi avo avr avs avt baa bab bad bai bao bar bas bat bav bba bbb bbd bbi bbo bbr bbs bbt bda bdb bdd bdi bdo bdr bds bdt bdv bi- bia bib bid bii bio bir bis bit biv boa bob bod boi boo bor bos bot bov bra brb brd bri bro brr brs brt brv bsa bsb bsd bsi bso bsr bss bst bsv bta btb btd bti bto btr bts btt btv bva bvb bvd bvi bvo bvr bvs bvt bvv daa dab dad dai dao dar das dat dav dba dbb dbd dbi dbo dbr dbs dbt dbv dda ddb ddd ddi ddo ddr dds ddt di- dia dib did dii dio dir dis dit div doa dob dod doi doo dor dos dot dov dra drb drd dri dro drr drs drt drv dsa dsb dsd dsi dso dsr dss dst dsv dta dtb dtd dti dto dtr dts dtt dtv dva dvb dvd dvi dvr dvs dvt i-d i-v ia- iaa iab iad iai iao iar ias iat iav iba ibb ibd ibi ibo ibr ibs ibt ibv ida idb idd idi ido idr ids idt idv iia iib iid iii iio iir iis iit io- ioa iob iod ioi ioo ior ios iot iov ir- ira irb ird iri iro irr irs irt irv is- isa isb isd isi iso isr iss ist isv ita itb itd iti ito its itt itv iva ivb ivd ivi ivo ivr ivs ivt ivv o-i oaa oab oad oai oao oar oas oat oav ob- oba obb obd obi obo obr obs obt obv oda odb odd odi odo odr ods odt odv oia oib oid oii oio oir ois oit oiv oo- ooa oob ood ooi ooo oor oos oot oov or- ora orb ord ori oro orr ors ort orv os- osa osb osd osi oso osr oss ost osv ot- ota otb otd oti oto otr ots ott otv ov- ova ovb ovd ovi ovo ovs ovv ra- raa rab rad rai rao rar ras rat rav rba rbb rbd rbi rbo rbr rbs rbt rda rdb rdd rdi rdo rdr rds rdt rdv ria rib rid rii rio rir ris rit riv roa rob rod roi roo ror ros rot rov rra rrb rrd rri rrr rrs rrt rsa rsb rsd rsi rso rsr rss rst rsv rta rtb rtd rti rto rtr rts rtt rtv rva rvb rvd rvi rvo rvr rvs rvt rvv saa sab sad sai sao sar sas sat sav sba sbb sbd sbi sbo sbr sbs sbt sbv sda sdb sdd sdi sdo sdr sds sdt sdv sia sib sid sii sio sir sis sit siv soa sob sod soi soo sor sos sot sov sr- sra srb srd sri sro srr srs srt srv ss- ssa ssb ssd ssi sso ssr sss sst ssv sta stb std sti sto str sts stt stv sva svb svd svi svo svr svs svt svv taa tab tad tai tao tar tas tat tav tba tbb tbd tbi tbo tbr tbs tbt tbv tda tdb tdd tdi tdo tdr tds tdt tdv tia tib tid tii tio tir tis tit tiv to- toa tob tod toi too tor tos tot tov tra trb trd tri tro trr trs trt trv tsa tsb tsd tsi tso tsr tss tst tsv tta ttb ttd tti tto ttr tts ttt ttv tva tvb tvd tvi tvo tvr tvs tvt v-a vaa vab vad vai vao var vas vat vav vba vbd vbi vbo vbr vbs vbv vdb vdd vdi vdo vdr vds vdt vdv vi- via vib vid vii vio vir vis vit viv voa vob vod voi voo vor vos vot vov vra vrb vrd vri vrr vrs vrt vsa vsb vsd vsi vso vsr vss vst vsv vta vtb vti vto vtr vts vtt vtv vva vvb vvi vvo vvr vvs vvt vvv

a-do a-ii a-iv aaaa aaab aaad aaai aaar aaas aaav aaba aabb aabd aabi aabt aada aadi aads aadt aaib aaii aais aaoo aara aard aari aaro aars aart aasa aasd aasi aass aast aata aatt aava abaa abab abad abai abar abas abat abb- abba abbb abbi abbo abbr abbs abbt abda abdi abdo abia abib abid abir abis abit aboa abob abod aboo abor abos abot abov abra abri abro abrs abs- absa absd absi abss abta abts abva abvd adaa adab adad adai adao adar adas adat adba adbi adda addd addi addo addr adds adia adib adio adir adis adit adob adod adoo ador ados adot adra adro adrs adsa adsi adso adsr adss adst adta adts advb advi advs advt aiai aias aiba aibo aida aidb aidi aidr aids aidt aiia aiib aiid aiir aioi aira aird airi airo airs airt aisa aisb aisd aisi aiso aisr aist aita aiti aitr aits aitt aiva aivd aoba aora aorb aors aort aosd aoss aotd arab arad arai arar aras arat arba arbi arbs arda ardi ardo ards aria arib arid arii ario aris arit aroa arob arod aroi aroo aror aros arr- arra arri arro arrr arrs arrt ars- arsa arsd arsi arso arst arta arti arto artr arts artv arva arvi arvo asaa asab asad asai asao asar asas asat asba asbo asda asdo asds asia asii asio asir asis asit asob asod asoi asor asos asot asra asro asrs assa assd assi asso assr asss asst asta astb asti asto astr asts astv