-al -er a-a a-b aaa aab aae aah aal aar aau aax ab- aba abb abe abh abl abr abu abx aea aeb aee aeh ael aer aeu aex aha ahb ahe ahh ahl ahr ahu ahx al- ala alb ale alh all alr alu alx ar- ara arb are arh arl arr aru arx au- aua aub aue auh aul aur aux ax- axa axe axh axl axr axx b-u baa bab bae bah bal bar bau bax bba bbb bbe bbh bbl bbr bbu bbx be- bea beb bee beh bel ber beu bex bha bhb bhe bhh bhl bhr bhu bhx bla blb ble blh bll blr blu blx bra brb bre brh brl brr bru brx bua bub bue buh bul bur buu bux bxb bxl bxx eaa eab eae eah eal ear eau eax eba ebb ebe ebh ebl ebr ebu ebx eea eeb eee eel eer eex eha ehb ehe ehh ehl ehr ehu ela elb ele elh ell elr elu elx era erb ere erh erl err eru eu- eua eub eue eul eur eux ex- exa exe exh exl exr exu exx haa hab hae hah hal har hau hax hba hbb hbe hbh hbl hbr hbu hbx he- hea heb hee heh hel her heu hex hha hhb hhe hhh hhl hhr hhu hla hlb hle hlh hll hlr hlu hlx hr- hra hrb hre hrh hrl hrr hru hua hub hue huh hul hur huu hux hxl la- laa lab lae lah lal lar lau lax lba lbb lbe lbh lbl lbr lbu lbx lea leb lee leh lel ler leu lex lha lhb lhh lhr lhu lhx lla llb lle lll llr llu lra lrb lrh lrr lru lua lub lue luh lul lur luu lux lxr lxx ra- raa rab rae rah ral rar rau rax rba rbb rbe rbh rbl rbr rbu rbx re- rea reb ree reh rel rer reu rex rh- rha rhb rhe rhh rhl rhr rhu rla rle rlh rll rlr rlu rra rrb rrh rrl rrr rru rua rub rue ruh rur ruu rux rxr ua- uaa uab uae uah ual uar uau uba ubb ube ubh ubl ubr ubu ubx uea ueb uee ueh uel uer uha uhb uhe uhh uhl uhr uhu ula ulb ule ull ulr ulu ur- ura urb ure url urr uru urx uua uue uur uuu uxb uxr uxu xaa xal xar xau xbe xbl xbr xbx xee xel xer xeu xex xla xlb xlr xrx xue xul xxl xxx