Question: Milan, is the second largest city after Humboldt in Gibson County, Tennessee, and the largest entirely within the county, and it is home to which ammunition plant of the United States Army near Milan, Tennessee and about 23 miles (37 km) north of Jackson, Tennessee?
Sentence (from "Milan, Tennessee"): The city was the first in Tennessee to begin no-till farming and to flouridate its drinking water.
Relevant evidence: No