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Reading location data points in from a .txt file to calculate distance between those and user locati  RSS feed

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I am trying to read some pre- saved location data points into my program which can then calculate the distance between a user - inputed location and these points to determine which point the user is closest to..  
My instructions are to create a .txt file so that each line in the file contains each point's lat and lon coordinates and a description.  I am confused as to how to assign this data to a GeoPoint(lat,lon,description), when each line in the file is read in a string..

39.7392, 104.9903, Denver
32.3199, 106.7637, Las Cruces
35.5281, 108.7426, Gallup
39.9526, 75.1652, Philadelphia
45.5155, 122.6793, Portland
41.8781, 87.6298, Chicago

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