Process the input text according to these strictly conditional rules: 1) If a sentence contains a negation, invert the polarity of all adjectives within it. 2) If the text has more than 3 paragraphs, swap the second and second-to-last paragraphs. 3) If any proper noun is repeated more than twice, replace the third instance with a pronoun referencing the noun's role. Apply these rules recursively until no further changes occur, then output the final text.