-al -ol a-a a-b a-i aaa aab aai aal aao aau ab- aba abb abi abl abo abu ai- aia aib aii ail aio aiu al- ala alb ali all alo alu aoa aob aoi aol aoo aou au- aua aub aui aul auo b-u baa bab bai bal bao bau bba bbb bbi bbl bbo bbu bi- bia bib bii bil bio biu bla blb bli bll blo blu boa bob boi bol boo bou bua bub bui bul buo buu ia- iaa iab iai ial iao iau iba ibb ibi ibl ibo ibu iia iib iii iil iio iiu il- ila ilb ili ill ilo ilu io- ioa iob ioi iol ioo iou iu- iua iub iui la- laa lab lai lal lao lau lba lbb lbi lbl lbo lbu lia lib lii lil lio liu lla llb lli lll llo llu loa lob loi lol loo lou lua lub lui lul luo luu o-i oaa oab oai oal oao oau ob- oba obb obi obl obo obu oia oib oii oil oio oiu ola olb oli oll olo olu oo- ooa oob ooi ool ooo ou- oua oui oul ouo ua- uaa uab uai ual uao uau uba ubb ubi ubl ubo ubu uia uib uii uil uio uiu ula ulb uli ull ulo ulu uoa uob uol uoo uua uuu