Task: Explanation
Input (English): The Duluth Ship Canal is an artificial channel cut through Minnesota Point, providing direct access to Duluth harbor from Lake Superior. Begun privately in 1871, it was put under federal supervision and maintenance several years later. It is still an important component of the harbor facilities. Question: Was Duluth Ship Canal or Cross Florida Barge Canal cancelled for environmental reasons? Answer: Cross Florida Barge Canal
Output (English):  Begun privately in 1871, it was put under federal supervision and maintenance several years later.