Original sentence: The French Quarter neighborhood of New Orleans, Louisiana is the center of much of the city's Carnival celebrations, especially on Mardi Gras Day.While the large motorized floats of the big parades have been prohibited from going down the Quarter's narrow streets since the early 1970s, numerous small marching krewes, parading jazz bands, and groups of revelers converge here, some after starting their parading earlier in the day in other parts of town
Edited sentence: Some krewes parade in the Quarter after starting earlier in the day in other parts of town.The French Quarter neighborhood of New Orleans, Louisiana is the center of the city's Carnival celebrations, especially on Mardi Gras Day.While the large motorized floats of the big parades have been prohibited since the early 1970s from going down the Quarter's narrow streets, numerous small marching krewes, parading jazz bands, and groups of revelers converge here