http://reply.papertrans.cn/3/233/23225/23225-31.png
http://reply.papertrans.cn/3/233/23225/23225-32.png
http://reply.papertrans.cn/3/233/23225/23225-33.png
http://reply.papertrans.cn/3/233/23225/23225-34.png
Submitted on: 21 October 2002.
Revised on: 18 November 2002.
Accepted on: 05 December 2002.
Nordic Journal of Linguistics---CAMBRIDGE UNIV PRESS
http://reply.papertrans.cn/3/233/23225/23225-36.png