-al -er a-a a-b a-c aaa aab aac aad aae aak aal aar aav ab- aba abb abc abd abe abk abl abr abv ac- aca acb acc acd ace ack acl acr acv ad- ada adb adc add ade adk adl adr adv aea aeb aec aed aee aek ael aer aev aka akb akc akd ake akk akl akr akv al- ala alb alc ald ale alk all alr alv ar- ara arb arc ard are ark arl arr arv av- ava avb avc avd ave avk avl avr baa bab bac bad bae bak bal bar bav bba bbb bbc bbd bbe bbk bbl bbr bca bcb bcc bcd bce bck bcl bcr bcv bda bdb bdc bdd bde bdk bdl bdr bdv be- bea beb bec bed bee bek bel ber bev bka bkb bkc bke bkk bkl bkr bkv bla blb blc bld ble blk bll blr blv bra brb brd bre brk brl brr brv bva bvb bvc bvd bve bvk bvl bvr bvv c-- caa cab cac cad cae cak cal car cav cba cbb cbc cbd cbe cbk cbl cbr cbv cca ccb ccc ccd cce cck ccl ccr ccv cda cdb cdc cdd cde cdk cdl cdr cdv ce- cea ceb cec ced cee cek cel cer cev cka ckb ckc ckd cl- cla clb clc cld cle clk cll clr clv cra crb crc crd cre crk crl crr crv cva cvb cvc cvd cve cvk cvl cvr cvv daa dab dac dad dae dak dal dar dav dba dbb dbc dbd dbe dbk dbl dbr dbv dca dcb dcc dcd dce dck dcl dcr dcv dda ddb ddc ddd dde ddk ddl ddr de- dea deb dec ded dee dek del der dev dka dkb dkc dke dkk dkl dkr dl- dla dlb dlc dld dle dlk dll dlr dlv dra drb drc drd dre drk drl drr drv dva dvb dvc dvd dve dvk dvl dvr eaa eab eac ead eae eak eal ear eav eba ebb ebc ebd ebe ebk ebl ebr ebv ec- eca ecb ecc ecd ece eck ecl ecr ecv ed- eda edb edc edd ede edk edl edr eea eeb eec eed eee eek eel eer eev eka ekb ekc ekd eke ekl ekr ekv ela elb elc eld ele elk ell elr elv era erb erc erd ere erk erl err erv eva evb evc evd eve evl evr evv ka- kaa kab kac kad kae kak kal kar kav kba kbb kbc kbd kbe kbk kbl kbr kca kcb kcc kcd kce kck kcl kcr kda kdb kdc kde kdk kdl kdr ke- kea keb kec ked kee kek kel ker kev kkb kkc kke kkk kkl kkr kkv kl- kla klb klc kld klr klv kra krc krd krk krl krr krv kva kvb kvk kvr kvv la- laa lab lac lad lae lak lal lar lav lba lbb lbc lbd lbe lbk lbl lbr lbv lca lcb lcc lcd lce lck lcl lcr lcv lda ldb ldc ldd lde ldk ldl ldr ldv lea leb lec led lee lek lel ler lev lka lkb lkl lkr lla llb llc lld lle llk lll llr llv lra lrb lrc lrd lrk lrr lrv lva lvb lvc lvd lve lvl lvr lvv ra- raa rab rac rad rae rak ral rar rav rba rbb rbc rbd rbe rbk rbl rbr rca rcb rcc rcd rce rcl rcr rcv rda rdb rdc rdd rde rdl rdr rdv re- rea reb rec red ree rek rel rer rev rkb rkc rke rkk rkv rla rlc rld rle rll rlr rra rrb rrc rrd rrk rrl rrr rva rvb rvc rvd rve rvl rvr rvv v-a v-e vaa vab vac vad vae vak val var vav vba vbc vbd vbk vbl vbr vbv vca vcc vcd vce vcl vcr vdb vdc vdd vde vdk vdl vdr vdv vea veb vec ved vee vek vel ver vka vkb vl- vla vlb vlc vld vle vlk vll vlv vra vrb vrc vrd vre vrk vrr vva vvb vvc vvr vvv

-vac a-ak a-be aaaa aaab aaac aaad aaae aaal aaar aaav aaba aabb aabc aabd aabl aaca aacb aacc aacd aace aack aacl aacr aacv aada aadc aade aaea aaec aaev aaka aake aala aalc aald aale aall aara aarc aard aare aava abaa abab abac abad abae abak abal abar abb- abba abbb abbe abbr abca abcb abcc abcd abcl abcr abda abec abed abee abel aber abla able ablv abra abrc abva abvd acaa acab acac acad acae acar acba acbl acca accc accd acce acda acdb acdc acde ace- acea acec aced acek acel acer acev ackd acke acla aclc acle aclr acr- acra acrc acre acrr acrv acvv adaa adab adac adad adae adak adal adar adba adbc adcc adda addc addd adde addl addr adea adeb adee adel ader adle adra adre advb aeac aecb aecl aede aeer aeka aela aelc aer- aera aerc aerd aeva akaa akae akal akar akca aked akee akel aker akka akle akr- akra akre alaa alac alad alae alak alal alar alb- alba albc albe alca alcc alce ald- alda alde aldl alea alec aled alee alek aler alev alk- alka alkb alkd alke all- alla alle alll allr alva arab arac arad arae arak aral arar arba arbe arc- arca arce arda ardc arde ardl area arec ared aree arek arel arev arka arke arla arle arr- arra arrc arre arrk arrr arva arve avab aval avar avcc avce avda avea avec avel aver avlb avra avre avva baaa baad baak baal baar baba babb babe babr bac- baca bacc bace back bada badb badd bade badr baed baek bael baer bak- baka bake bakl bakr bala balc bald bale balk ball bar- bara barb barc bard bare bark barr bava bave bbad bbbb bbdd bbeb bblb bbrc bcaa bcar bcbc bcca bccc bccl bcda bcde bcec bcer bcra bd-r bdav bdbc bddc bdle