PETROGENESIS

en er es et go in is it ne no oe oi on op or os pe pi re si so ti to

ego eng ens eon ere erg ern ers ess gee gen get gie gin gip git gor gos got ins ion ire its nee neg net nip nit nog nor nos not oes one ons ope ops opt ore ors ort ose pee peg pen per pes pet pie pig pin pis pit poi pot pro psi pst ree reg rei rep res ret rig rin rip roe rot see seg sei sen ser set sin sip sir sis sit son sop sos sot sri tee teg ten tie tin tip tis toe tog ton top tor

eger egis egos engs eons epee epos ergo ergs erne erns eros erst eses esne gees gene gens gent gest gets gien gies gins gips girn giro girt gist gite gits goer goes gone gore gorp gree grin grip grit grot inro into ions ires iron neep negs ness nest nets nips nite nits noes nogs noir nope nori nose note ogee ogre ones open opes opts ores orts oses peen peer pees pegs pein pens pent peon pere peri pert peso pest pets pier pies pigs pine ping pins pint pion pirn piso piss pits poet pois pone pong pons pore porn port pose post pots pree prig prog pros psis psst rees regs rein reis rent repo reps rest rete rets rigs ring rins riot ripe rips rise rite roes rope rose rote roti rots seen seep seer sees sego segs seis sene sent sept sere sers sets sign sine sing sins sipe sips sire sirs site sits snip snit snog snot sone song sons sops sore sori sorn sort sots spin spit spot sris step stir stop teen tees tegs tens tern tier ties tine ting tins tips tire tiro toes togs tone tong tons tope topi tops tore tori torn tors toss tree tres trig trio trip trog trop