-al -ol a-a aaa aaf aal aao aap af- afa aff afl afo afp al- ala alf all alo alp aoa aof aol aoo aop ap- apa apf apl apo app faa faf fal fao fap ffa fff ffl ffo ffp fla flf fll flo flp foa fof fol foo fop fpa fpl fpo fpp l-p la- laa laf lal lao lap lfa lff lfl lfo lfp lla llf lll llo llp loa lof lol loo lop lpa lpf lpl lpo lpp oaa oaf oal oao oap of- ofa off ofl ofo ofp ola olf oll olo olp oo- ooa oof ool ooo oop op- opa opf opl opo opp p-p paa paf pal pao pap pfa pff pfl pfo pfp pla plf pll plo plp poa pof pol poo pop ppa ppf ppl ppo ppp