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Submitted on: 31 October 2011.
Revised on: 11 January 2012.
Accepted on: 18 February 2012.
___________________COMPUTATIONAL LINGUISTICS---MIT PRESS
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Submitted on: 02 March 2001.
Revised on: 09 April 2001.
Accepted on: 26 April 2001.
___________________COMPUTATIONAL LINGUISTICS---MIT PRESS
Submitted on: 16 April 2010.
Revised on: 07 July 2010.
Accepted on: 31 August 2010.
___________________COMPUTATIONAL LINGUISTICS---MIT PRESS
Submitted on: 22 June 2014.
Revised on: 29 July 2014.
Accepted on: 16 August 2014.
___________________COMPUTATIONAL LINGUISTICS---MIT PRESS
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