-al a-a a-b aaa aab aak aal aap aar ab- aba abb abk abl abp abr aka akb akk akl akp akr al- ala alb alk all alp alr ap- apa apb apk apl app apr ar- ara arb ark arl arp arr b-p baa bab bak bal bap bar bba bbb bbk bbl bbp bbr bka bkb bkk bkl bkp bkr bla blb blk bll blp blr bpa bpb bpl bpp bpr bra brb brk brl brp brr ka- kaa kab kak kal kap kar kba kbb kbk kbl kbp kbr kkb kkk kkl kkp kkr kl- kla klb klr kpa kpk kpl kpp kpr kra krk krl krp krr l-p la- laa lab lak lal lap lar lba lbb lbk lbl lbp lbr lka lkb lkl lkp lkr lla llb llk lll llp llr lpa lpb lpk lpl lpp lpr lra lrb lrk lrp lrr p-p paa pab pak pal pap par pba pbb pbk pbl pbp pbr pka pkb pkl pkp pkr pla plb plk pll plp plr ppa ppb ppk ppl ppp ppr pra prb prk prl prp prr ra- raa rab rak ral rap rar rba rbb rbk rbl rbp rbr rkb rkk rkp rla rll rlp rlr rpa rpb rpk rpl rpp rpr rra rrb rrk rrl rrp rrr