Complex sentence: She placed the highest score in the interview round and at the conclusion of the second edition of Miss Earth pageant, she was crowned Miss Earth 2002 by the outgoing titleholder Catharina Svensson, which was held in Quezon City, Philippines on October 20,2002.
Split into simpler sentences: She placed the highest score in the interview round and at the conclusion of the competition. At the conclusion of the second edition of Miss Earth pageant, she was crowned Miss Earth 2002 by the outgoing titleholder Catharina Svensson, which was held in Quezon City, Philippines on October 20,2002.