PROTANOPIC

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airn airt anti arco atop cain cant capo carn carp cart ciao cion coat coin coir coni coon coop coot corn crap crit crop icon inro into iota iron naoi narc nipa noir nori nota onto orca otic pact pain pair pant part pian pica pina pint pion pirn pita poco poon poop poor porn port prao prat proa prop rain rani rant rapt rato riot roan root rota roti roto taco tain tarn taro tarp tiro toon topi topo tora torc tori torn toro trap trio trip trop