-al -ol a-a a-b aaa aab aah aal aao ab- aba abb abh abl abo aha ahb ahh ahl aho al- ala alb alh all alo aoa aob aoh aol aoo baa bab bah bal bao bba bbb bbh bbl bbo bha bhb bhh bhl bho bla blb blh bll blo boa bob boh bol boo haa hab hah hal hao hba hbb hbh hbl hbo hha hhb hhh hhl hho hla hlb hlh hll hlo hoa hob hoh hol hoo la- laa lab lah lal lao lba lbb lbh lbl lbo lha lhb lhh lho lla llb lll llo loa lob loh lol loo oaa oab oah oal oao ob- oba obb obh obl obo oha ohh ohl oho ola olb oll olo oo- ooa oob ooh ool ooo