-al -er a-a a-b a-i aaa aab aae aaf aag aai aak aal aar ab- aba abb abe abf abg abi abk abl abr aea aeb aee aef aeg aei aek ael aer af- afa afb afe aff afg afi afk afl afr ag- aga agb age agf agg agi agk agl agr ai- aia aib aie aif aig aii aik ail air aka akb ake akg aki akk akl akr al- ala alb ale alf alg ali alk all alr ar- ara arb are arf arg ari ark arl arr baa bab bae baf bag bai bak bal bar bba bbb bbe bbf bbg bbi bbk bbl bbr be- bea beb bee bef beg bei bek bel ber bfa bfb bfe bff bfg bfi bfl bfr bga bgb bge bgf bgg bgi bgk bgl bgr bi- bia bib bie bif big bii bik bil bir bka bkb bke bkf bkg bkk bkl bkr bla blb ble blf blg bli blk bll blr bra brb bre brf brg bri brk brl brr eaa eab eae eaf eag eai eak eal ear eba ebb ebe ebf ebg ebi ebk ebl ebr eea eeb eee eef eeg eek eel eer ef- efa efb efe eff efg efi efl efr ega egb ege egf egg egi egl egr eia eib eie eif eig eii eik eil eir eka ekb eke ekf ekg eki ekl ekr ela elb ele elf elg eli elk ell elr era erb ere erf erg eri erk erl err faa fab fae faf fag fai fak fal far fba fbb fbe fbf fbg fbi fbk fbl fbr fea feb fee fef feg fei fek fel fer ffa ffe fff ffg ffi ffk ffl ffr fga fgb fge fgf fgg fgi fgl fgr fia fib fie fif fig fii fik fil fir fka fkb fkf fkg fki fkk fkl fla flb fle flf flg fli fll flr fra frb fre frf frg fri frk frl frr gaa gab gae gaf gag gai gak gal gar gba gbe gbf gbg gbi gbk gbl gbr ge- gea geb gee gef geg gei gek gel ger gfa gfb gfe gff gfi gfk gfl gfr gga ggb ggg ggi ggr gia gib gie gif gig gii gik gil gir gka gkb gla glb gle glf glg gli glk gll glr gra grb gre grf grg gri grk grl grr i-f ia- iaa iab iae iaf iag iai ial iar iba ibb ibe ibf ibg ibi ibk ibl ibr ie- iea iee ief ieg iei iek iel ier ifa ifb ife iff ifg ifi ifl ifr iga igb ige igf igg igi igk igl igr iia iib iie iif iii iil iir ika ikb ike ikf iki ikk ikl ikr il- ila ilb ile ilf ilg ili ilk ill ilr ir- ira irb ire irf irg iri irk irl irr ka- kaa kab kae kaf kag kai kak kal kar kba kbb kbe kbf kbi kbk kbl kbr ke- kea keb kee kef keg kei kek kel ker kfa kff kfg kfi kga kgb kgf kgi kgl kia kib kie kif kig kii kik kil kir kkb kke kki kkk kkl kkr kl- kla klb klf klg kli klr kra krf krg kri krk krl krr la- laa lab lae laf lag lai lak lal lar lba lbb lbe lbf lbg lbi lbk lbl lbr lea leb lee lef leg lei lek lel ler lfa lfb lfe lff lfg lfi lfk lfl lfr lga lgb lge lgf lgg lgi lgk lgl lgr lia lib lie lif lig lii lik lil lir lka lkb lkg lkl lkr lla llb lle llf llg lli llk lll llr lra lrb lrf lrg lri lrk lrr ra- raa rab rae raf rag rai rak ral rar rba rbb rbe rbf rbg rbi rbk rbl rbr re- rea reb ree ref reg rei rek rel rer rfa rfb rfe rff rfg rfi rfk rfl rfr rga rgb rge rgf rgg rgi rgk rgr ria rib rie rif rig rii rik ril rir rkb rke rkf rkg rkk rla rle rlf rlg rli rll rlr rra rrb rrf rrg rri rrk rrl rrr

a-ak a-be a-ii aaaa aaab aaae aaaf aaai aaal aaar aaba aabb aabi aabl aaea aafa aafb aaff aafi aafl aage aaib aaii aaka aake aala aale aali aall aara aare aari abaa abab abae abaf abag abai abak abal abar abb- abba abbb abbe abbi abbr abee abel aber abff abgl abia abib abie abig abil abir abla able abra abri aeaf aebi aeer aega aeka aela aer- aera aeri afaa afak afar afee afek afel afer affa affi afgf afia afib afif afig afik afil afir afka afkr afla afle aflg afr- afra afre afri agag agai agal agar agba agea agee agei agel ager agfa agga agge aggi agia agib agie agig agii agil agir agla agle agli agra agre agri agrl aiai aiba aibl aiea aiee aiel aiff aifl aiga aiia aiib aiir aika aike aiki aila aile aili aira aire airi akaa akae akai akal akar akee akeg akel aker akia akie akif akik akil akir akka akki akle akr- akra akre alaa alae alag alai alak alal alar alb- alba albe albi alea alee alef aleg alek aler alfa alfe alfi alg- alga alge algi ali- alia alib alie alif alig alii alik alil alir alk- alka alkb alke alki all- alla alle alli alll allr arab arae araf arag arai arak aral arar arba arbe arbi area aree aref areg arei arek arel arfa arfb arff arga argb arge argi aria arib arie arif arig arii arik aril arka arke arki arla arle arli arr- arra arre arrg arri arrk arrr ba-i baaa baaf baak baal baar baba babb babe babi babr baek bael baer baff baga bage bagg bagi baia baib baie baig baik bail bair bak- baka bake baki bakl bakr bala bale balf bali balk ball bar- bara barb bare barf barg bari bark barr bbbb bbeb bbga