CONTRAPOSING

ag ai an ar as at go in is it na no oi on op or os pa pi si so ta ti to

act ago ags ain air ais ait ani ant apo apt arc ars art asp can cap car cat cig cis cog con coo cop cor cos cot gan gap gar gas gat gin gip git goa goo gor gos got inn ins ion its nag nan nap nip nit nog noo nor nos not oar oat oca ono ons oot ops opt ora orc ors ort pac pan par pas pat pia pic pig pin pis pit poi poo pot pro psi pst rag rai ran rap ras rat ria rig rin rip roc rot sac sag sap sat sic sin sip sir sit son sop sot spa sri tag tan tao tap tar tas tic tin tip tis tog ton too top tor

acts agin agio agon ains airn airs airt aits anis anon anti ants apos arco arcs arts asci atop cain cans cant capo caps carn carp cars cart cast cats ciao cigs cion cist coat cogs coin coir coni conn cons coon coop coos coot cops corn cors cost cots crag crap cris crit crop gain gait gaps gars gasp gast gats gins gips girn giro girt gist gits gnar gnat goas goat goon goop goos gorp gran grat grin grip grit grot icon inns inro into ions iota iron nags nans naoi naos naps narc nipa nips nits nogs noir nona noon nori nota oars oast oats ocas onos onto oops oots opts orca orcs orts osar otic pacs pact pain pair pang pans pant pars part past pats pian pias pica pics pigs pina ping pins pint pion pirn piso pita pits poco pois pong pons poon poor poos porn port post pots prao prat prig proa prog pros ragi rags rain rais rang rani rant raps rapt rasp rato rats rias rigs ring rins riot rips roan rocs root rota roti roto rots sago sain sang sari sati scag scan scar scat scop scot sign sing snag snap snip snit snog snot soap soar soca song soon soot sora sori sorn sort span spar spat spic spin spit spot stag star stir stoa stop taco tags tain tang tans taos taps tarn taro tarp tars tics ting tins tips tiro toga togs tong tons toon topi topo tops tora torc tori torn toro tors trap trig trio trip trog trop tsar