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Storms Hurricane One The first tropical cyclone of the year , also known as the Great Mobile Hurricane of 1852 , was first observed on August 19 about 140 mi ( 230 km ) north of Puerto Rico .
 Mobile, Puerto Rico
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Mobile, Puerto Rico