Complex sentence: Sugimura announced his engagement with a woman named on March 14,2006; then, on May 12, he was spotted on the town with a secretary of former Prime Minister Tsutomu Hata.
Split into simpler sentences: Sugimura announced his engagement with a woman named on March 14,2006. Then, on May 12, he was spotted on the town with a secretary of former Prime Minister Tsutomu Hata.