-vac aaaa aaab aaac aaal aaap aaav aaba aabb aabc aabl aabp aaca aacb aacc aacl aacp aacv aala aalc aall aapa aapc aapl aava abaa abab abac abal abap abb- abba abbb abca abcb abcc abcl abcp abla ablv abpa abpc abpp abva abvp acaa acab acac acap acba acbl acca accc accp acla aclc acpa acvv al-p alaa alac alal alap alb- alba albc alca alcc all- alla alll alpa alpl alva apac apal apap apba apca apcb apcc apl- apla aplp appa appc appl avab aval avcc avlb avva baaa baal baba babb bac- baca bacc bala balc ball bapa bapc bapp bava bbbb bblb bcaa bcap bcbc bcbp bcca bccc bccl bcpl bcpp blaa blab blac bpcp caaa caab caac caal caap caba cac- caca cacc cala calc call calp capa capb capc capp cava cbac cbal cbbc cbca cbcc cbcl cbcp cblb cblc cbpc cbpp cbva cbvb cbvp ccaa ccab ccac ccap ccba ccbc ccca cccb cccc cccl cccp cccv ccla cclc cclv ccpa ccpl ccpp clab clap clav clpb clpp cpaa cpac cpap cpbc cpca cplc cppa cpvc cpvl cvac cvca cvcc laaa laac laal laap laba laca lacc lacl lacp lala lall lapa lapb lapc lapp lava lavc lbcc lcac lcbc lcca lccc lcpa lcpc lcpl lcvp llcc lllc llll lpac lpla lppl lvcc paal paap paba paca pala pall palp papa papb papp pava pbac pbcc pbpa pcaa pcap pcba pcbc pcca pccc pccl pcll pcpb pcpp plaa plab plac plap plav plcc plpa plpp ppac ppal ppap ppbv ppcc pppa pppp pvlv pvpa vaal vaca vala vall valp vapa vapb vava vbcc vcal vlab vlba vlcc vplp vvpb vvvv