Complex sentence: Illinois Route 161 is an east-west highway with its western terminus at Illinois Route 157 in Fairview Heights and its official eastern terminus at Illinois Route 37 near Kell, but some people claim IL 161 goes all the way to Allendale at Illinois Route 1.
Split into simpler sentences: Illinois Route 161 (abbreviated IL 161) is an east-west highway with its western terminus at Illinois Route 157 in Fairview Heights and its official eastern terminus at Illinois Route 37 near Kell. Some people claim IL 161 goes all the way to Allendale at Illinois Route 1.