ffff ffrr flog floo flop flor fofo fogg fogl fogo foll folo folr foof fool fopp for- forg forl foro forr fprf frog frol frop gfor ggfg gggg ggpo glof glog glop glor glro goff gofr gogo golf goll golo golp goof goog gool goop goor gopo gorf gorg goro gorp gorr gpgp gprp grof grog grol groo grop gror grrl grrr lgfl llll lloo loff log- logo logp loll lolo loof lool loop loor lopp loro lpfp lppl lprp lrrr off- offo offr ofgo ofor ogfr ogog ogpl ogro olgr ollo olof olog olor ooff oolo oooo opo- opor oppo orff orgo orlo oro- orof oror orro pfff pffr pglo plff plog ploo plop plpp poff pogg pogo polg poll polo poof pool poop poor pop- popo popp porg poro porr pplo pppo pppp pprf prlr pro- prof prog prol proo prop rffl roff rofl rofo rogg rogo rolf roll rolo rolp roof roog rool roop roor ropo roro rpof rrrr