-al a-a a-b a-t aaa aab aal aap aat ab- aba abb abl abp abt al- ala alb all alp alt ap- apa apb apl app apt at- ata atb atl atp att b-p baa bab bal bap bat bba bbb bbl bbp bbt bla blb bll blp blt bpa bpb bpl bpp bpt bta btb btl btp btt l-p la- laa lab lal lap lat lba lbb lbl lbp lbt lla llb lll llp llt lpa lpb lpl lpp lpt lta ltb ltl ltp ltt p-p paa pab pal pap pat pba pbb pbl pbp pbt pla plb pll plp plt ppa ppb ppl ppp ppt pt- pta ptb ptl ptp ptt taa tab tal tap tat tba tbb tbl tbp tbt tla tll tlp tlt tpa tpb tpl tpp tpt tta ttb ttl ttp ttt