-al -ol a-a a-b a-c aaa aab aac aah aal aao aau ab- aba abb abc abh abl abo abu ac- aca acb acc ach acl aco acu aha ahb ahc ahh ahl aho ahu al- ala alb alc alh all alo alu aoa aob aoc aoh aol aoo aou au- aua aub auc auh aul auo b-u baa bab bac bah bal bao bau bba bbb bbc bbh bbl bbo bbu bca bcb bcc bch bcl bco bcu bha bhb bhc bhh bhl bho bhu bla blb blc blh bll blo blu boa bob boc boh bol boo bou bua bub buc buh bul buo buu c-- caa cab cac cah cal cao cau cba cbb cbc cbh cbl cbo cbu cca ccb ccc cch ccl cco ccu ch- cha chb chc chh chl cho chu cl- cla clb clc clh cll clo clu co- coa cob coc coh col coo cou cua cub cuc cuh cul cuo cuu haa hab hac hah hal hao hau hba hbb hbc hbh hbl hbo hbu hca hcb hcc hch hcl hco hha hhb hhc hhh hhl hho hhu hla hlb hlc hlh hll hlo hlu hoa hob hoc hoh hol hoo hou hua hub huc huh hul huo huu la- laa lab lac lah lal lao lau lba lbb lbc lbh lbl lbo lbu lca lcb lcc lch lcl lco lcu lha lhb lhc lhh lho lhu lla llb llc lll llo llu loa lob loc loh lol loo lou lua lub luc luh lul luo luu oaa oab oac oah oal oao oau ob- oba obb obc obh obl obo obu oc- oca ocb occ och ocl oco ocu oha ohc ohh ohl oho ohu ola olb olc oll olo olu oo- ooa oob ooc ooh ool ooo ou- oua ouc ouh oul ouo ua- uaa uab uac uah ual uao uau uba ubb ubc ubh ubl ubo ubu uca ucb ucc uch ucl uco ucu uha uhb uhc uhh uhl uho uhu ula ulb ulc ull ulo ulu uoa uob uoc uol uoo uua uuc uuu