-al -ol a-a a-b a-q a-t aaa aab aal aao aaq aat ab- aba abb abl abo abq abt al- ala alb all alo alq alt aoa aob aol aoo aot aqa aql aqo aqt at- ata atb atl ato att baa bab bal bao baq bat bba bbb bbl bbo bbq bbt bla blb bll blo blq blt boa bob bol boo boq bot bqt bta btb btl bto btq btt la- laa lab lal lao laq lat lba lbb lbl lbo lbt lla llb lll llo llq llt loa lob lol loo loq lot lta ltb ltl lto ltt oaa oab oal oao oaq oat ob- oba obb obl obo obt ola olb oll olo olt oo- ooa oob ool ooo oot oqb oqo ot- ota otb otl oto ott qaa qal qat qba qbq qoo qqq qta qto qtq taa tab tal tao taq tat tba tbb tbl tbo tbt tla tll tlo tlt to- toa tob tol too toq tot tqo tta ttb ttl tto ttt