INTEROPTIC

en er et in it ne no oe oi on op or pe pi re ti to

cep con cop cor cot eon ern ice ion ire net nip nit nor not one ope opt orc ore ort pec pen per pet pic pie pin pit poi pot pro rec rei rep ret rin rip roc roe rot ten tet tic tie tin tip tit toe ton top tor tot

cent cero cine cion cire cite coin coir cone coni cope core corn cote crit crop epic etic icon inro inti into iron nett nice nite noir nope nori note once open otic pein pent peon peri pert pice pier pine pint pion pirn poet pone pore porn port rein rent repo rice riot ripe rite rope rote roti tent tern tier tine tint tipi tire tiro titi toit tone tope topi torc tore tori torn tort tote tret trio trip trop trot