Complex sentence: The Wilcox Rebellion of 1888 was a plot to overthrow King David Kalākaua, king of Hawaii, and replace him with his sister in a coup d'état in response to increased political tension between the legislature and the king after the 1887 constitution.
Split into simpler sentences: The Wilcox Rebellion of 1888 was a plot to overthrow King David Kalākaua and replace him with his sister in a coup d'état. This was in response to increased political tension between the legislature and the king under the 1887 constitution.