Question: What is the plant that produced TNT until 1976 and is located between the towns of Elwood, Manhattan and Wilmington in northeastern Illinois?
Sentence (from "Suburban Prairie Conference"): Participating communities are in Cook County, Illinois, DeKalb County, Illinois, DuPage County, Illinois, Grundy County, Illinois, Kane County, Illinois, Kendall County, Illinois and Will County, Illinois.
Relevant evidence: No