-er a-a a-b a-c aaa aab aac aad aae aar aas aav ab- aba abb abc abd abe abr abs abv ac- aca acb acc acd ace acr acs acv ad- ada adb adc add ade adr ads adv aea aeb aec aed aee aer aes aev ar- ara arb arc ard are arr ars arv as- asa asb asc asd ase asr ass asv av- ava avb avc avd ave avr avs baa bab bac bad bae bar bas bav bba bbb bbc bbd bbe bbr bbs bca bcb bcc bcd bce bcr bcs bcv bda bdb bdc bdd bde bdr bds bdv be- bea beb bec bed bee ber bes bev bra brb brd bre brr brs brv bsa bsb bsc bsd bse bsr bss bsv bva bvb bvc bvd bve bvr bvs bvv c-- caa cab cac cad cae car cas cav cba cbb cbc cbd cbe cbr cbs cbv cca ccb ccc ccd cce ccr ccs ccv cda cdb cdc cdd cde cdr cds cdv ce- cea ceb cec ced cee cer ces cev cra crb crc crd cre crr crs crv csa csb csc csd cse csr css csv cva cvb cvc cvd cve cvr cvs cvv daa dab dac dad dae dar das dav dba dbb dbc dbd dbe dbr dbs dbv dca dcb dcc dcd dce dcr dcs dcv dda ddb ddc ddd dde ddr dds de- dea deb dec ded dee der des dev dra drb drc drd dre drr drs drv dsa dsb dsc dsd dse dsr dss dsv dva dvb dvc dvd dve dvr dvs eaa eab eac ead eae ear eas eav eba ebb ebc ebd ebe ebr ebs ebv ec- eca ecb ecc ecd ece ecr ecs ecv ed- eda edb edc edd ede edr eds eea eeb eec eed eee eer ees eev era erb erc erd ere err ers erv es- esa esb esc esd ese esr ess esv eva evb evc evd eve evr evs evv ra- raa rab rac rad rae rar ras rav rba rbb rbc rbd rbe rbr rbs rca rcb rcc rcd rce rcr rcs rcv rda rdb rdc rdd rde rdr rds rdv re- rea reb rec red ree rer res rev rra rrb rrc rrd rrr rrs rsa rsb rsc rsd rse rsr rss rsv rva rvb rvc rvd rve rvr rvs rvv saa sab sac sad sae sar sas sav sba sbb sbc sbd sbe sbr sbs sbv sca scb scc scd sce scr scs scv sda sdb sdc sdd sde sdr sds sdv se- sea seb sec sed see ser ses sev sr- sra srb src srd sre srr srs srv ss- ssa ssb ssc ssd sse ssr sss ssv sva svb svc svd sve svr svs svv v-a v-e vaa vab vac vad vae var vas vav vba vbc vbd vbr vbs vbv vca vcc vcd vce vcr vcs vdb vdc vdd vde vdr vds vdv vea veb vec ved vee ver ves vra vrb vrc vrd vre vrr vrs vsa vsb vsc vsd vse vsr vss vsv vva vvb vvc vvr vvs vvv

-ase -vac a-be aaaa aaab aaac aaad aaae aaar aaas aaav aaba aabb aabc aabd aaca aacb aacc aacd aace aacr aacs aacv aada aadc aade aads aaea aaec aaes aaev aara aarc aard aare aars aasa aasc aasd aase aass aava abaa abab abac abad abae abar abas abb- abba abbb abbe abbr abbs abca abcb abcc abcd abcr abcs abda abec abed abee aber abes abra abrc abrs abs- absa absd abse abss abva abvd acaa acab acac acad acae acar acas acba acca accc accd acce accs acda acdb acdc acde acds ace- acea acec aced acer aces acev acr- acra acrc acre acrr acrs acrv acsa acsc acsd acse acss acvs acvv adaa adab adac adad adae adar adas adba adbc adcc adcs adda addc addd adde addr adds adea adeb adee ader ades adra adre adrs adsa adsr adss advb advs aeac aeas aebs aecb aede aeer aer- aera aerc aerd aers aesc aesd aess aeva arab arac arad arae arar aras arba arbe arbs arc- arca arce arcs arda ardc arde ards area arec ared aree ares arev arr- arra arrc arre arrr arrs ars- arsa arsc arsd arse arva arve asaa asab asac asad asae asar asas asba asc- asca ascb ascc asce ascr asda asde asds asea asec asee aser ases asra asrc asrs assa assc assd asse assr asss asva asvd asvs avab avar avas avcc avce avda avea avec aver aves avra avre avva baaa baad baar baas baba babb babe babr babs bac- baca bacc bace bacs bada badb badd bade badr bads baed baer baes bar- bara barb barc bard bare barr bars basa basc base bass bava bave bbad bbas bbbb bbbs bbdd bbeb bbrc bcaa bcar bcas bcbc bcbs bcca bccc bccs bcda bcde bcds bcec bcer bces bcra bcrs bcsa bcsc bcss bd-r bdav bdbc bddc bdes bdsd bead bear beas beav beba bebb bebe beca becs beda bede beds beeb beed beer bees bera berc berd bere berr bers bes- besa bese bess bevs brab brac brad brae bras brav brca brcb brce brda brds brea breb brec bred bree brer bres brev brrr brrs brsb brsr bsaa bsac bsas bsbd bscs bsea bseb bsec bsed bsee bser bses bsra bsrd bssc bssd bsse bvds bvsc c-cd caaa caab caac caas caba cabe cabs cac- caca cacc cace cacr cada cadc cadd cade cadr cads caec caer caes cara carb carc card care carr cars casa casb casc casd case casr cass cava cave cavs cbac cbar cbbc cbbs cbca cbcc cbce cbcr cbcs cbdb cbdc cbds cbea cbec cbee cber cbrd cbre cbsa cbsc cbse cbva cbvb cbve cbvr ccaa ccab ccac ccad ccar ccas ccba ccbc ccca cccb cccc cccs cccv ccdc ccdr ccds cced ccee ccra ccrc ccre ccrs ccsa ccsd ccss ccvs cd-e cd-r cdaa cdac cdad cdba cdcs cdda cddb cddr