Complex sentence: Most of Glencoe is now a part of North Plains, and is the name of the road connecting Hillsboro to North Plains, as well as the name of the second high school built in Hillsboro, Glencoe High School.
Split into simpler sentences: Most of Glencoe is now a part of North Plains. Glencoe gives its name to the road connecting Hillsboro to North Plains, as well as the name of the second high school built in Hillsboro, Glencoe High School.