Complex sentence: Icos Corporation (trademark ICOS) was the largest biotechnology company in the U.S. state of Washington before it was sold to Eli Lilly and Company in 2007.
Split into simpler sentences: Icos Corporation (trademark ICOS) was an American biotechnology company based in the U.S. state of Washington. It was the largest biotechnology company in the state before it was sold to Eli Lilly and Company in 2007.