Complex sentence: In September 1996, the United States Department of the Interior signed a 45 million dollar resettlement agreement with the islanders, stipulating that the islanders themselves will scrape off a few inches of Rongelap's still contaminated surface.
Split into simpler sentences: In September 1996, the United States Department of the Interior signed a 45 million dollar resettlement agreement with the islanders. Stipulating that the islanders themselves will scrape off a few inches of Rongelap's still contaminated surface.