-al -ol a-a a-b a-c a-q aaa aab aac aal aao aaq ab- aba abb abc abl abo abq ac- aca acb acc acl aco acq al- ala alb alc all alo alq aoa aob aoc aol aoo aqa aqc aql aqo baa bab bac bal bao baq bba bbb bbc bbl bbo bbq bca bcb bcc bcl bco bcq bla blb blc bll blo blq boa bob boc bol boo boq bqc c-- caa cab cac cal cao caq cba cbb cbc cbl cbo cbq cca ccb ccc ccl cco cl- cla clb clc cll clo co- coa cob coc col coo coq cqa cqb cqc cql cqo la- laa lab lac lal lao laq lba lbb lbc lbl lbo lca lcb lcc lcl lco lcq lla llb llc lll llo llq loa lob loc lol loo loq oaa oab oac oal oao oaq ob- oba obb obc obl obo oc- oca ocb occ ocl oco ola olb olc oll olo oo- ooa oob ooc ool ooo oqb oqo qaa qac qal qba qbc qbq qca qcc qcl qco qoo qqq