-al -er -ol a-a a-b a-i a-t aaa aab aae aai aak aal aao aap aar aat ab- aba abb abe abi abk abl abo abp abr abt aea aeb aee aei aek ael aeo aep aer aet ai- aia aib aie aii aik ail aio aip air ait aka akb ake aki akk akl ako akp akr al- ala alb ale ali alk all alo alp alr alt aoa aob aoe aoi aok aol aoo aop aor aot ap- apa apb ape api apk apl apo app apr apt ar- ara arb are ari ark arl aro arp arr art at- ata atb ate ati atl ato atp atr att b-p baa bab bae bai bak bal bao bap bar bat bba bbb bbe bbi bbk bbl bbo bbp bbr bbt be- bea beb bee bei bek bel beo bep ber bet bi- bia bib bie bii bik bil bio bip bir bit bka bkb bke bkk bkl bko bkp bkr bkt bla blb ble bli blk bll blo blp blr blt boa bob boe boi bok bol boo bop bor bot bpa bpb bpe bpi bpl bpo bpp bpr bpt bra brb bre bri brk brl bro brp brr brt bta btb bte bti btk btl bto btp btr btt eaa eab eae eai eak eal eao eap ear eat eba ebb ebe ebi ebk ebl ebo ebp ebr ebt eea eeb eee eek eel eeo eep eer eet eia eib eie eii eik eil eio eip eir eit eka ekb eke eki ekl eko ekp ekr ekt ela elb ele eli elk ell elo elp elr elt eo- eoa eob eoe eoi eok eol eoo eop eor eot ep- epa epb epe epi epl epo epp epr ept era erb ere eri erk erl ero erp err ert eta etb ete eti etk etl eto etp etr ett ia- iaa iab iae iai ial iao iap iar iat iba ibb ibe ibi ibk ibl ibo ibp ibr ibt ie- iea iee iei iek iel iep ier iet iia iib iie iii iil iio iip iir iit ika ikb ike iki ikk ikl iko ikr ikt il- ila ilb ile ili ilk ill ilo ilp ilr ilt io- ioa iob ioe ioi iol ioo iop ior iot ipa ipb ipe ipi ipl ipo ipp ipr ipt ir- ira irb ire iri irk irl iro irp irr irt ita itb ite iti itk itl ito itp itt k-t ka- kaa kab kae kai kak kal kao kap kar kat kba kbb kbe kbi kbk kbl kbo kbp kbr ke- kea keb kee kei kek kel keo kep ker ket kia kib kie kii kik kil kio kip kir kit kkb kke kki kkk kkl kkp kkr kkt kl- kla klb kli klo klr klt koa kob koe koi kok kol koo kop kor kot kpa kpe kpi kpk kpl kpo kpp kpr kpt kra kri krk krl kro krp krr krt kta ktb kte ktk ktl kto ktp ktr ktt l-p la- laa lab lae lai lak lal lao lap lar lat lba lbb lbe lbi lbk lbl lbo lbp lbr lbt lea leb lee lei lek lel leo lep ler let lia lib lie lii lik lil lio lip lir lit lka lkb lkl lkp lkr lkt lla llb lle lli llk lll llo llp llr llt loa lob loe loi lok lol loo lop lor lot lpa lpb lpe lpi lpk lpl lpo lpp lpr lpt lra lrb lri lrk lro lrp lrr lrt lta ltb lte lti ltk ltl lto ltp ltr ltt o-i oaa oab oae oai oak oal oao oap oar oat ob- oba obb obe obi obk obl obo obp obr obt oea oeb oee oei oel oeo oep oer oet oia oib oie oii oik oil oio oip oir oit oka okb oke oki okk okl oko okp okr ola olb ole oli olk oll olo olp olt oo- ooa oob ooi ook ool ooo oop oor oot op- opa opb ope opi opk opl opo opp opr opt or- ora orb ore ori ork orl oro orp orr ort ot- ota otb ote oti otk otl oto otp otr ott p-p paa pab pae pai pak pal pao pap par pat pba pbb pbe pbi pbk pbl pbo pbp pbr pbt pea peb pee pei pek pel peo pep per pet pia pib pie pii pik pil pio pip pir pit pka pkb pke pki pkl pko pkp pkr pkt pla plb ple pli plk pll plo plp plr plt poa pob poe poi pok pol poo pop por pot ppa ppb ppe ppi ppk ppl ppo ppp ppr ppt pra prb pre pri prk prl pro prp prr prt pt- pta ptb pte pti ptk ptl pto ptp ptr ptt ra- raa rab rae rai rak ral rao rap rar rat rba rbb rbe rbi rbk rbl rbo rbp rbr rbt re- rea reb ree rei rek rel reo rep rer ret ria rib rie rii rik ril rio rip rir rit rkb rke rkk rko rkp rkt rla rle rli rll rlo rlp rlr rlt roa rob roe roi rok rol roo rop ror rot rpa rpb rpe rpi rpk rpl rpo rpp rpr rpt rra rrb rri rrk rrl rrp rrr rrt rta rtb rte rti rtk rtl rto rtp rtr rtt taa tab tae tai tak tal tao tap tar tat tba tbb tbe tbi tbk tbl tbo tbp tbr tbt te- tea teb tee tei tek tel teo tep ter tet tia tib tie tii tik til tio tip tir tit tka tkb tke tkk tkl tko tkp tkr tkt tla tle tli tlk tll tlo tlp tlr tlt to- toa tob toe toi tok tol too top tor tot tpa tpb tpe tpi tpk tpl tpo tpp tpr tpt tra trb tre tri trk trl tro trp trr trt tta ttb tte tti ttk ttl tto ttp ttr ttt

a-ak a-be a-ii a-ok aaaa aaab