Google might not consider it duplicate but will surely consider it useless or less informative. If you will read the article you will understand how spinned content brakes the readability and makes your visitor feel that they are reading out of mind stuff.... I strongly recommend not to do so. Instead you can re-write your self those articles so that the quality remains intact and looks original.
Panda or Farmer update aims to combat duplicate content by deindexing content farms and low quality links
it strongly depends on rewrite quality - just check in copyscape.. if u face duplicates - remove the sentence before the page is indexed.