title: Remove substring before a specific char (NSString)
body: <p>Basically I am getting a users city throughout Facebook Connect. The result is always in this format:</p>
  
  <p>Sydney, Australia</p>
  
  <p>But since there will be many users, the city and country can vary. Here is the format:
  First the city with a comma, then a space and the country.</p>
  
  <p>I only want to however retrieve the country name. Is it possible for me to locate the comma in string, then remove everything behind it. Then I can <code>replaceOccurancesOfString:" "</code> to remove the space.</p>
  
  <p>I have seen other questions on this but they are in different languages. I am asking for Objective-C</p>
  
  <p>Thanks!</p>