-al -ol a-a a-b aaa aab aal aao aap aav ab- aba abb abl abo abp abv al- ala alb all alo alp alv aoa aob aol aoo aop aov ap- apa apb apl apo app apv av- ava avb avl avo avp b-p baa bab bal bao bap bav bba bbb bbl bbo bbp bla blb bll blo blp blv boa bob bol boo bop bov bpa bpb bpl bpo bpp bpv bva bvb bvl bvo bvp bvv l-p la- laa lab lal lao lap lav lba lbb lbl lbo lbp lbv lla llb lll llo llp llv loa lob lol loo lop lov lpa lpb lpl lpo lpp lpv lva lvb lvl lvp lvv oaa oab oal oao oap oav ob- oba obb obl obo obp obv ola olb oll olo olp oo- ooa oob ool ooo oop oov op- opa opb opl opo opp opv ov- ova ovb ovl ovo ovp ovv p-p paa pab pal pao pap pav pba pbb pbl pbo pbp pla plb pll plo plp plv poa pob pol poo pop pov ppa ppb ppl ppo ppp ppv pva pvb pvl pvo pvp pvv v-a vaa vab val vao vap vav vba vbl vbo vbv vl- vla vlb vll vlo vlp vlv voa vob vol voo vop vov vpa vpb vpl vpo vpp vva vvb vvo vvv