-al a-a a-b a-c aaa aab aac aal aap aav ab- aba abb abc abl abp abv ac- aca acb acc acl acp acv al- ala alb alc all alp alv ap- apa apb apc apl app apv av- ava avb avc avl avp b-p baa bab bac bal bap bav bba bbb bbc bbl bbp bca bcb bcc bcl bcp bcv bla blb blc bll blp blv bpa bpb bpc bpl bpp bpv bva bvb bvc bvl bvp bvv c-- caa cab cac cal cap cav cba cbb cbc cbl cbp cbv cca ccb ccc ccl ccp ccv cl- cla clb clc cll clp clv cpa cpb cpc cpl cpp cpv cva cvb cvc cvl cvp cvv l-p la- laa lab lac lal lap lav lba lbb lbc lbl lbp lbv lca lcb lcc lcl lcp lcv lla llb llc lll llp llv lpa lpb lpc lpl lpp lpv lva lvb lvc lvl lvp lvv p-p paa pab pac pal pap pav pba pbb pbc pbl pbp pca pcb pcc pcl pcp pcv pla plb plc pll plp plv ppa ppb ppc ppl ppp ppv pva pvb pvc pvl pvp pvv v-a vaa vab vac val vap vav vba vbc vbl vbv vca vcc vcl vcp vl- vla vlb vlc vll vlp vlv vpa vpb vpc vpl vpp vva vvb vvc vvv