Complex sentence: After incurring heavy losses through its investments in Safety-Kleen and Greyhound Lines and after almost 20 years of expansion, Laidlaw Inc. filed for protection under Chapter 11 of the U.S. Bankruptcy Code in June 2001.
Split into simpler sentences: After incurring heavy losses through its investments in Safety-Kleen and Greyhound Lines. After almost 20 years of expansion, Laidlaw Inc. filed for protection under Chapter 11 of the U.S. Bankruptcy Code in June 2001.