-al a-a a-b a-i aaa aab aai aal aar aau ab- aba abb abi abl abr abu ai- aia aib aii ail air aiu al- ala alb ali all alr alu ar- ara arb ari arl arr aru au- aua aub aui aul aur b-u baa bab bai bal bar bau bba bbb bbi bbl bbr bbu bi- bia bib bii bil bir biu bla blb bli bll blr blu bra brb bri brl brr bru bua bub bui bul bur buu ia- iaa iab iai ial iar iau iba ibb ibi ibl ibr ibu iia iib iii iil iir iiu il- ila ilb ili ill ilr ilu ir- ira irb iri irl irr iru iu- iua iub iui iur la- laa lab lai lal lar lau lba lbb lbi lbl lbr lbu lia lib lii lil lir liu lla llb lli lll llr llu lra lrb lri lrr lru lua lub lui lul lur luu ra- raa rab rai ral rar rau rba rbb rbi rbl rbr rbu ria rib rii ril rir rla rli rll rlr rlu rra rrb rri rrl rrr rru rua rub rui rur ruu ua- uaa uab uai ual uar uau uba ubb ubi ubl ubr ubu uia uib uii uil uir uiu ula ulb uli ull ulr ulu ur- ura urb uri url urr uru uua uur uuu