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Submitted on: 17 November 1998.
Revised on: 20 January 1999.
Accepted on: 20 February 1999.
___________________JOURNAL OF PRAGMATICS---ELSEVIER
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Submitted on: 25 April 2000.
Revised on: 06 July 2000.
Accepted on: 01 August 2000.
___________________JOURNAL OF PRAGMATICS---ELSEVIER
Submitted on: 24 November 2013.
Revised on: 07 February 2014.
Accepted on: 14 March 2014.
___________________JOURNAL OF PRAGMATICS---ELSEVIER
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