poppa opppa ppopa ppopa opppa poppa poppa opppa ppopa ppopa opppa poppa pppoa pppoa pppoa pppoa pppoa pppoa opppa poppa opppa poppa ppopa ppopa popap oppap ppoap ppoap oppap popap poapp opapp paopp apopp oappp aoppp ppaop ppaop papop appop papop appop opapp poapp oappp aoppp paopp apopp popap oppap ppoap ppoap oppap popap poapp opapp paopp apopp oappp aoppp ppaop ppaop papop appop papop appop opapp poapp oappp aoppp paopp apopp pppao pppao pppao pppao pppao pppao ppapo ppapo pappo apppo pappo apppo ppapo ppapo pappo apppo pappo apppo ppapo ppapo pappo apppo pappo apppo oppap popap oppap popap ppoap ppoap opapp poapp oappp aoppp paopp apopp opapp poapp oappp aoppp paopp apopp ppaop ppaop papop appop papop appop
Note: these 'words' (valid or invalid) are all the permutations of the word poppa. These words are obtained by scrambling the letters in poppa.