-al -er a-a a-b aaa aab aae aaf aal aan aar aau aax ab- aba abb abe abf abl abn abr abu abx aea aeb aee aef ael aen aer aeu aex af- afa afb afe aff afl afn afr afu afx al- ala alb ale alf all aln alr alu alx an- ana anb ane anf anl ann anr anu anx ar- ara arb are arf arl arn arr aru arx au- aua aub aue auf aul aun aur aux ax- axa axe axl axn axr axx b-u baa bab bae baf bal ban bar bau bax bba bbb bbe bbf bbl bbn bbr bbu bbx be- bea beb bee bef bel ben ber beu bex bfa bfb bfe bff bfl bfn bfr bfu bfx bla blb ble blf bll bln blr blu blx bna bnb bne bnf bnl bnn bnr bnu bnx bra brb bre brf brl brn brr bru brx bua bub bue buf bul bun bur buu bux bxb bxl bxn bxx eaa eab eae eaf eal ean ear eau eax eba ebb ebe ebf ebl ebn ebr ebu ebx eea eeb eee eef eel een eer eex ef- efa efb efe eff efl efr efx ela elb ele elf ell eln elr elu elx en- ena enb ene enf enl enn enr enu era erb ere erf erl ern err eru eu- eua eub eue euf eul eun eur eux ex- exa exe exl exr exu exx faa fab fae faf fal fan far fau fax fba fbb fbe fbf fbl fbn fbr fbu fbx fea feb fee fef fel fen fer feu fex ffa ffe fff ffl ffn ffr ffu ffx fla flb fle flf fll fln flr flu flx fna fnb fne fnf fnl fnn fnr fnu fnx fra frb fre frf frl frn frr fru fua fub fue fuf ful fun fur fuu fux fxe fxr fxu fxx la- laa lab lae laf lal lan lar lau lax lba lbb lbe lbf lbl lbr lbu lbx lea leb lee lef lel len ler leu lex lfa lfb lfe lff lfl lfn lfr lfu lfx lla llb lle llf lll lln llr llu lna lnb lne lnl lnn lnr lnu lra lrb lrf lrn lrr lru lua lub lue luf lul lun lur luu lux lxr lxx naa nab nae naf nal nan nar nau nax nba nbb nbe nbf nbl nbn nbr nbu nbx ne- nea neb nee nef nel nen ner neu nex nfa nfb nfe nff nfl nfn nfr nfu nla nlb nle nlf nll nln nlr nlu nlx nna nnb nne nnf nnl nnn nnu nra nrb nre nrf nrl nrn nrr nru nrx nua nub nue nul nun nur nuu nux nxl ra- raa rab rae raf ral ran rar rau rax rba rbb rbe rbf rbl rbn rbr rbu rbx re- rea reb ree ref rel ren rer reu rex rfa rfb rfe rff rfl rfn rfr rfu rla rle rlf rll rln rlr rlu rna rnb rnn rnr rnu rra rrb rrf rrl rrn rrr rru rua rub rue ruf run rur ruu rux rxr ua- uaa uab uae uaf ual uan uar uau uba ubb ube ubf ubl ubn ubr ubu ubx uea ueb uee uef uel uen uer ufa ufe uff ufl ufn ufr ufu ufx ula ulb ule ulf ull uln ulr ulu un- una unb une unf unl unn unr unu unx ur- ura urb ure urf url urn urr uru urx uua uue uun uur uuu uxb uxf uxr uxu xaa xaf xal xan xar xau xbe xbl xbr xbx xee xel xen xer xeu xex xfa xfe xfl xfn xfx xla xlb xlf xlr xna xnu xrf xrx xue xul xun xxl xxx