FRONTOGENESIS

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efs eft ego eng ens eon ere erg ern ers ess fee fen fer fes fet fie fig fin fir fit foe fog fon for fro gee gen get gie gin git goo gor gos got ifs inn ins ion ire its nee neg net nit nog noo nor nos not oes oft one ono ons oot ore ors ort ose ree ref reg rei res ret rif rig rin roe rot see seg sei sen ser set sin sir sis sit son sos sot sri tee teg ten tie tin tis toe tog ton too tor

efts eger egis egos engs eons ergo ergs erne erns eros erst eses esne fees feet fens fere fern fess fest fete fets figs fine fino fins fire firn firs fist fits foes fogs foin fons font foot fore fort foss free fret frig frit froe frog gees gene gens gent gest gets gien gies gift gins girn giro girt gist gite gits goer goes gone goof goon goos gore gree grin grit grot info inns inro into ions ires iron negs neif nene neon ness nest nets nine nite nits noes nogs noir none noon nori nose note ogee ogre ones onos onto oots ores orts oses reef rees refs reft regs reif rein reis rent rest rete rets rife rifs rift rigs ring rins riot rise rite roes roof root rose rote roti roto rots seen seer sees sego segs seif seis sene sent sere serf sers sets sift sign sine sing sins sire sirs site sits snit snog snot soft sone song sons soon soot sore sori sorn sort sots sris stir teen tees tegs tens tern tier ties tine ting tins tire tiro toes togs tone tong tons toon tore tori torn toro tors toss tree tref tres trig trio trog