-al -er a-a a-b a-i aaa aab aae aai aak aal aar aau ab- aba abb abe abi abk abl abr abu aea aeb aee aei aek ael aer aeu ai- aia aib aie aii aik ail air aiu aka akb ake aki akk akl akr aku al- ala alb ale ali alk all alr alu ar- ara arb are ari ark arl arr aru au- aua aub aue aui auk aul aur b-u baa bab bae bai bak bal bar bau bba bbb bbe bbi bbk bbl bbr bbu be- bea beb bee bei bek bel ber beu bi- bia bib bie bii bik bil bir biu bka bkb bke bkk bkl bkr bla blb ble bli blk bll blr blu bra brb bre bri brk brl brr bru bua bub bue bui buk bul bur buu eaa eab eae eai eak eal ear eau eba ebb ebe ebi ebk ebl ebr ebu eea eeb eee eek eel eer eia eib eie eii eik eil eir eiu eka ekb eke eki ekl ekr eku ela elb ele eli elk ell elr elu era erb ere eri erk erl err eru eu- eua eub eue eui eul eur ia- iaa iab iae iai ial iar iau iba ibb ibe ibi ibk ibl ibr ibu ie- iea iee iei iek iel ier iia iib iie iii iil iir iiu ika ikb ike iki ikk ikl ikr iku il- ila ilb ile ili ilk ill ilr ilu ir- ira irb ire iri irk irl irr iru iu- iua iub iue iui iur ka- kaa kab kae kai kak kal kar kau kba kbb kbe kbi kbk kbl kbr kbu ke- kea keb kee kei kek kel ker kia kib kie kii kik kil kir kiu kkb kke kki kkk kkl kkr kku kl- kla klb kli klr klu kra kri krk krl krr kru kub kue kui kuk kul kur kuu la- laa lab lae lai lak lal lar lau lba lbb lbe lbi lbk lbl lbr lbu lea leb lee lei lek lel ler leu lia lib lie lii lik lil lir liu lka lkb lkl lkr lla llb lle lli llk lll llr llu lra lrb lri lrk lrr lru lua lub lue lui luk lul lur luu ra- raa rab rae rai rak ral rar rau rba rbb rbe rbi rbk rbl rbr rbu re- rea reb ree rei rek rel rer reu ria rib rie rii rik ril rir rkb rke rkk rku rla rle rli rll rlr rlu rra rrb rri rrk rrl rrr rru rua rub rue rui ruk rur ruu ua- uaa uab uae uai uak ual uar uau uba ubb ube ubi ubk ubl ubr ubu uea ueb uee uei uel uer uia uib uie uii uil uir uiu uka ukb uke uki ukk ukl ukr uku ula ulb ule uli ulk ull ulr ulu ur- ura urb ure uri urk url urr uru uua uue uur uuu