-al -ol a-a a-b aaa aab aah aal aan aao ab- aba abb abh abl abn abo aha ahb ahh ahl ahn aho al- ala alb alh all aln alo an- ana anb anh anl ann ano aoa aob aoh aol aon aoo baa bab bah bal ban bao bba bbb bbh bbl bbn bbo bha bhb bhh bhl bho bla blb blh bll bln blo bna bnb bnl bnn bno boa bob boh bol bon boo haa hab hah hal han hao hba hbb hbh hbl hbn hbo hha hhb hhh hhl hhn hho hla hlb hlh hll hln hlo hna hnb hnh hnl hnn hno hoa hob hoh hol hon hoo la- laa lab lah lal lan lao lba lbb lbh lbl lbo lha lhb lhh lho lla llb lll lln llo lna lnb lnh lnl lnn lno loa lob loh lol lon loo naa nab nah nal nan nao nba nbb nbl nbn nbo nha nhb nhh nhl nhn nla nlb nlh nll nln nlo nna nnb nnh nnl nnn nno no- noa nob noh nol non noo oaa oab oah oal oan oao ob- oba obb obh obl obn obo oha ohh ohl ohn oho ola olb oll oln olo on- ona onb onh onl onn ono oo- ooa oob ooh ool oon ooo