-ol fff ffl ffo ffp ffr flf fll flo flp flr fof fol foo fop for fpl fpo fpp fpr frf frl fro frp frr l-p lff lfl lfo lfp lfr llf lll llo llp llr lof lol loo lop lor lpf lpl lpo lpp lpr lrf lro lrp lrr of- off ofl ofo ofp ofr olf oll olo olp oo- oof ool ooo oop oor op- opf opl opo opp opr or- orf orl oro orp orr p-p pff pfl pfo pfp pfr plf pll plo plp plr pof pol poo pop por ppf ppl ppo ppp ppr prf prl pro prp prr rff rfl rfo rfp rfr rlf rll rlo rlp rlr rof rol roo rop ror rpf rpl rpo rpp rpr rrf rrl rrp rrr

ffff ffrr floo flop flor fofo foll folo folr foof fool fopp for- forl foro forr fprf frol frop llll lloo loff loll lolo loof lool loop loor lopp loro lpfp lppl lprp lrrr off- offo offr ofor ollo olof olor ooff oolo oooo opo- opor oppo orff orlo oro- orof oror orro pfff pffr plff ploo plop plpp poff poll polo poof pool poop poor pop- popo popp poro porr pplo pppo pppp pprf prlr pro- prof prol proo prop rffl roff rofl rofo rolf roll rolo rolp roof rool roop roor ropo roro rpof rrrr

floop floor floro follo forro froop l-pop lollo lolol offof ofpop ooooo oploo oppol orfor orlop pforp ploop plopp po-po pollo polop poopo poplr popop poppo poro- porro proff proll prolo proof proor prop- propl propp propr ro-ro rofor rolfo rollo rprop

foofoo frollo lloro lo-pro lollop looloo loplop lopoff ofpoor oooooo orloff polpol poopoo popfor popoff popopo poporo poppop pppppp profor r-loop roflol roloff

folprof foo-foo foppolo forloff lolpoop looroll off-off ofproof poo-poo pop-off rolloff roppolo

lopopolo oolooloo plopplop poorpoor poroporo roll-off

fllllllll foolproof

fool-proof

proof-proof