-al -ol a-a a-b a-i a-t aaa aab aae aai aal aao aap aat aax ab- aba abb abe abi abl abo abp abt abx aea aeb aee aei ael aeo aep aet aex ai- aia aib aie aii ail aio aip ait aix al- ala alb ale ali all alo alp alt alx aoa aob aoe aoi aol aoo aop aot aox ap- apa apb ape api apl apo app apt apx at- ata atb ate ati atl ato atp att atx ax- axa axe axi axl axo axp axt axx b-p baa bab bae bai bal bao bap bat bax bba bbb bbe bbi bbl bbo bbp bbt bbx be- bea beb bee bei bel beo bep bet bex bi- bia bib bie bii bil bio bip bit bix bla blb ble bli bll blo blp blt blx boa bob boe boi bol boo bop bot box bpa bpb bpe bpi bpl bpo bpp bpt bpx bta btb bte bti btl bto btp btt btx bxb bxi bxl bxo bxx eaa eab eae eai eal eao eap eat eax eba ebb ebe ebi ebl ebo ebp ebt ebx eea eeb eee eel eeo eep eet eex eia eib eie eii eil eio eip eit eix ela elb ele eli ell elo elp elt elx eo- eoa eob eoe eoi eol eoo eop eot ep- epa epb epe epi epl epo epp ept epx eta etb ete eti etl eto etp ett etx ex- exa exe exi exl exo exp ext exx ia- iaa iab iae iai ial iao iap iat iba ibb ibe ibi ibl ibo ibp ibt ibx ie- iea iee iei iel iep iet iex iia iib iie iii iil iio iip iit iix il- ila ilb ile ili ill ilo ilp ilt ilx io- ioa iob ioe ioi iol ioo iop iot ipa ipb ipe ipi ipl ipo ipp ipt ipx ita itb ite iti itl ito itp itt itx ixe ixi ixl l-p la- laa lab lae lai lal lao lap lat lax lba lbb lbe lbi lbl lbo lbp lbt lbx lea leb lee lei lel leo lep let lex lia lib lie lii lil lio lip lit lix lla llb lle lli lll llo llp llt loa lob loe loi lol loo lop lot lox lpa lpb lpe lpi lpl lpo lpp lpt lpx lta ltb lte lti ltl lto ltp ltt ltx lxi lxo lxx o-i oaa oab oae oai oal oao oap oat oax ob- oba obb obe obi obl obo obp obt obx oea oeb oee oei oel oeo oep oet oex oia oib oie oii oil oio oip oit ola olb ole oli oll olo olp olt oo- ooa oob ooi ool ooo oop oot oox op- opa opb ope opi opl opo opp opt opx ot- ota otb ote oti otl oto otp ott ox- oxa oxb oxi oxo oxt oxx p-p paa pab pae pai pal pao pap pat pax pba pbb pbe pbi pbl pbo pbp pbt pbx pea peb pee pei pel peo pep pet pex pia pib pie pii pil pio pip pit pix pla plb ple pli pll plo plp plt plx poa pob poe poi pol poo pop pot pox ppa ppb ppe ppi ppl ppo ppp ppt ppx pt- pta ptb pte pti ptl pto ptp ptt ptx pxe pxl pxt t-x taa tab tae tai tal tao tap tat tax tba tbb tbe tbi tbl tbo tbp tbt te- tea teb tee tei tel teo tep tet tex tia tib tie tii til tio tip tit tix tla tle tli tll tlo tlp tlt tlx to- toa tob toe toi tol too top tot tox tpa tpb tpe tpi tpl tpo tpp tpt tpx tta ttb tte tti ttl tto ttp ttt ttx txe txi txl txt xaa xal xap xat xbe xbl xbx xee xel xep xet xex xia xie xii xio xit xix xla xlb xli xlt xoa xoi xoo xop xot xox xpa xpb xpe xpl xpo xpp xpt xti xtp xtx xxi xxl xxo xxp xxx