title: Split a address string into city, state and address in R
body: <p>I have a address in a form of string given below:</p>
  
  <pre><code>dat = data.frame(Addresses = c("1626 Aviation Way, Albuquerque, NM 30906, USA", 
                                 "1626 Aviation Way, Augusta, GA 30906, USA", 
                                 "325 Main St, Stratford, CT 06615, USA", 
                                 "4205 Bessie Coleman Blvd, Tampa, FL 33607, USA"), stringsAsFactors = FALSE)
  </code></pre>
  
  <p>I want to break it into 5 columns such as Street,City,State,Zip code, Postal.
  How can I do this in R.</p>