Simplify the following text for a Grade 4 native English-speaking person.
Original: The Union Pacific\/West Line runs through downtown Wheaton and has been a staple of Wheaton since its founding . Metra has two stops along the line in Wheaton , one at College Avenue serving Wheaton College , and another at West Street in the heart of downtown Wheaton .
Simplified: Wheaton is a city of Illinois in the United States .