63296
This spillway and an imperfect natural levee about 4 – 6 meters ( 12 to 20 feet ) high are all that prevents the Mississippi from taking a new , shorter course through Lake Pontchartrain to the Gulf of Mexico .
 location: Mississippi; location: Lake Pontchartrain; location: Gulf of Mexico
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Mississippi, Lake Pontchartrain, Gulf of Mexico 
Answer:
 location: Mississippi; location: Lake Pontchartrain; location: Gulf of Mexico