-al a-a a-c a-t aaa aac aae aal aap aat ac- aca acc ace acl acp act aea aec aee ael aep aet al- ala alc ale all alp alt ap- apa apc ape apl app apt at- ata atc ate atl atp att c-- caa cac cae cal cap cat cca ccc cce ccl ccp cct ce- cea cec cee cel cep cet cl- cla clc cle cll clp clt cpa cpc cpe cpl cpp cpt cta ctc cte ctl ctp ctt eaa eac eae eal eap eat ec- eca ecc ece ecl ect eea eec eee eel eep eet ela elc ele ell elp elt ep- epa epc epe epl epp ept eta etc ete etl etp ett l-p la- laa lac lae lal lap lat lca lcc lce lcl lcp lct lea lec lee lel lep let lla llc lle lll llp llt lpa lpc lpe lpl lpp lpt lta ltc lte ltl ltp ltt p-p paa pac pae pal pap pat pca pcc pce pcl pcp pct pea pec pee pel pep pet pla plc ple pll plp plt ppa ppc ppe ppl ppp ppt pt- pta ptc pte ptl ptp ptt taa tac tae tal tap tat tca tcc tce tcl tcp tct te- tea tec tee tel tep tet tla tlc tle tll tlp tlt tpa tpc tpe tpl tpp tpt tta ttc tte ttl ttp ttt