Complex sentence: The Queen of the Netherlands is a Dutch salvage and dredging ship constructed in 1998, that has used been used in many high-profile salvage and dredging operations such as the investigation into the Swissair Flight 111 crash and in the Port Phillip Channel Deepening Project.
Split into simpler sentences: The Queen of the Netherlands is a Dutch salvage and dredging ship constructed in 1998. The vessel has used been used in high-profile salvage and dredging operations including the investigation into the Swissair Flight 111 crash and in the Port Phillip Channel Deepening Project.