-al -er -ol a-a a-b a-c aaa aab aac aae aah aak aal aao aar ab- aba abb abc abe abh abk abl abo abr ac- aca acb acc ace ach ack acl aco acr aea aeb aec aee aeh aek ael aeo aer aha ahb ahc ahe ahh ahk ahl aho ahr aka akb akc ake akh akk akl ako akr al- ala alb alc ale alh alk all alo alr aoa aob aoc aoe aoh aok aol aoo aor ar- ara arb arc are arh ark arl aro arr baa bab bac bae bah bak bal bao bar bba bbb bbc bbe bbh bbk bbl bbo bbr bca bcb bcc bce bch bck bcl bco bcr be- bea beb bec bee beh bek bel beo ber bha bhb bhc bhe bhh bhk bhl bho bhr bka bkb bkc bke bkk bkl bko bkr bla blb blc ble blh blk bll blo blr boa bob boc boe boh bok bol boo bor bra brb bre brh brk brl bro brr c-- caa cab cac cae cah cak cal cao car cba cbb cbc cbe cbh cbk cbl cbo cbr cca ccb ccc cce cch cck ccl cco ccr ce- cea ceb cec cee ceh cek cel ceo cer ch- cha chb chc che chh chk chl cho chr cka ckb ckc ckh cko cl- cla clb clc cle clh clk cll clo clr co- coa cob coc coe coh cok col coo cor cra crb crc cre crh crk crl cro crr eaa eab eac eae eah eak eal eao ear eba ebb ebc ebe ebh ebk ebl ebo ebr ec- eca ecb ecc ece ech eck ecl eco ecr eea eeb eec eee eek eel eeo eer eha ehb ehc ehe ehh ehl eho ehr eka ekb ekc eke ekh ekl eko ekr ela elb elc ele elh elk ell elo elr eo- eoa eob eoc eoe eoh eok eol eoo eor era erb erc ere erh erk erl ero err haa hab hac hae hah hak hal hao har hba hbb hbc hbe hbh hbk hbl hbo hbr hca hcb hcc hce hch hck hcl hco hcr he- hea heb hec hee heh hek hel heo her hha hhb hhc hhe hhh hhk hhl hho hhr hka hkb hkh hkk hkl hko hkr hla hlb hlc hle hlh hll hlo hlr hoa hob hoc hoe hoh hok hol hoo hor hr- hra hrb hrc hre hrh hrk hrl hro hrr ka- kaa kab kac kae kah kak kal kao kar kba kbb kbc kbe kbh kbk kbl kbo kbr kca kcb kcc kce kch kck kcl kcr ke- kea keb kec kee keh kek kel keo ker kha khe khh khk kho khr kkb kkc kke kkh kkk kkl kkr kl- kla klb klc klh klo klr koa kob koc koe koh kok kol koo kor kra krc krk krl kro krr la- laa lab lac lae lah lak lal lao lar lba lbb lbc lbe lbh lbk lbl lbo lbr lca lcb lcc lce lch lck lcl lco lcr lea leb lec lee leh lek lel leo ler lha lhb lhc lhh lhk lho lhr lka lkb lkh lkl lkr lla llb llc lle llk lll llo llr loa lob loc loe loh lok lol loo lor lra lrb lrc lrh lrk lro lrr oaa oab oac oae oah oak oal oao oar ob- oba obb obc obe obh obk obl obo obr oc- oca ocb occ och ock ocl oco ocr oea oeb oec oee oeh oel oeo oer oha ohc ohe ohh ohl oho ohr oka okb okc oke okk okl oko okr ola olb olc ole olk oll olo oo- ooa oob ooc ooh ook ool ooo oor or- ora orb orc ore orh ork orl oro orr ra- raa rab rac rae rah rak ral rao rar rba rbb rbc rbe rbh rbk rbl rbo rbr rca rcb rcc rce rch rcl rco rcr re- rea reb rec ree reh rek rel reo rer rh- rha rhb rhc rhe rhh rhl rho rhr rkb rkc rke rkk rko rla rlc rle rlh rll rlo rlr roa rob roc roe roh rok rol roo ror rra rrb rrc rrh rrk rrl rrr

a-ak a-be a-ha a-ok aaaa aaab aaac aaae aaah aaal aaar aaba aabb aabc aabh aabl aaca aacb aacc aace aach aack aacl aaco aacr aaea aaec aaha aahk aahl aaka aake aala aalc aale aall aalo aaoe aaoo aara aarc aare aaro abaa abab abac abae abak abal abar abb- abba abbb abbe abbo abbr abca abcb abcc abch abcl abcr abec abee abel aber abha abho abhr abla able ablo aboa abob aboh abok abol aboo abor abra abrc abro acaa acab acac acae acar acba acbl acca accc acce acch acco ace- acea acec aceh acek acel acer acha ache achh achl acho achr acke acla aclc acle aclr acoa acoe acoh acol acor acr- acra acrc acre acro acrr aeac aecb aecl aeer aeka aela aelc aer- aera aerc aero ahab ahac ahah ahal ahar ahel ahha ahla ahle ahoa ahoe ahok ahor ahra ahrc ahre ahrr akaa akae akah akal akao akar akca akee akel aker akha akka akko akle aklo akok akr- akra akre alaa alac alae alak alal alao alar alb- alba albc albe albo alca alcc alce alco alea alec alee aleh alek aleo aler alha alk- alka alkb alke alko all- alla alle allh alll allo allr aloa aloc aloe aloh alok alol aloo alor alro aoah aoba aoca aoce aola aole aora aorb arab arac arae arah arak aral arar arba arbe arbh arc- arca arce arch arco area arec aree areh arek arel areo arh- arka arke arkh arko arla arle arlo aroa arob aroe aroo aror arr- arra arrc arre arrh arrk arro arrr baaa baah baak baal baar baba babb babe babo babr bac- baca bacc bace bach back baco baek bael baer baha bahl baho bahr bak-