Complex sentence: On November 18,2009 the U.S. Army Corps of Engineers began several weeks of recovery operations to retrieve artifacts, which will be conserved at the Conservation Research Lab at Texas A&M University.
Split into simpler sentences: On November 18,2009 the U.S. Army Corps of Engineers began several weeks of recovery operations to retrieve artifacts. Items recovered are destined for study at the Conservation Research Lab at Texas A&M University.