-al a-a a-c a-t aaa aac aae aal aam aat ac- aca acc ace acl acm act aea aec aee ael aem aet al- ala alc ale all alm alt ama amc ame aml amm amt at- ata atc ate atl atm att c-- caa cac cae cal cam cat cca ccc cce ccl ccm cct ce- cea cec cee cel cem cet cl- cla clc cle cll clm clt cma cmc cme cml cmm cmt cta ctc cte ctl ctm ctt eaa eac eae eal eam eat ec- eca ecc ece ecl ecm ect eea eec eee eel eem eet ela elc ele ell elm elt em- ema emc eme eml emm emt eta etc ete etl etm ett la- laa lac lae lal lam lat lca lcc lce lcl lcm lct lea lec lee lel lem let lla llc lle lll llm llt lma lmc lme lml lmm lmt lta ltc lte ltl ltm ltt maa mac mae mal mam mat mc- mca mcc mce mcl mcm mct mea mec mee mel mem met mla mlc mle mll mlm mlt mma mmc mme mml mmm mmt mta mtc mte mtl mtm mtt taa tac tae tal tam tat tca tcc tce tcl tcm tct te- tea tec tee tel tem tet tla tlc tle tll tlm tlt tma tmc tme tml tmm tmt tta ttc tte ttl ttm ttt