Task: Question Answering
Input (English): Passage: Black Pearl -- The Black Pearl is a fictional ship in the Pirates of the Caribbean film series. (The physical ship used as a prop during filmmaking is actually named the Sunset.) In the screenplay, the Black Pearl is easily recognized by her distinctive black hull and sails. Captained by Jack Sparrow she is said to be ``nigh uncatchable''. Indeed, in the first three films she either overtakes or flees all other ships, including the Interceptor (regarded as the fastest ship in the Caribbean) and the Flying Dutchman (which is actually faster against the wind). Her speed is derived from the large amount of sails she carries. She is noted in At World's End as being ``The only ship that can outrun the Flying Dutchman.''
Question: did they use real ships in pirates of the caribbean
Output (English): 1