Task: Sentence Expansion
Input (English): The University of Illinois at Urbana — Champaign ( UIUC ) is a university in the state of Illinois , United States .
Output (English): The University of Illinois at Urbana – Champaign ( also known as U of I , Illinois , or colloquially as the University of Illinois or UIUC ) is a public research university in Illinois and the flagship institution of the University of Illinois system .