Revision as of 09:43, 3 November 2014 by NBlöcher
In (i) the content of the complement clause of know is understood as which sonata's Susan has played.
(i) Susan has played some sonata's, but I don't know which sonata's __
The term goes back to Ross (1969).
- Ross, J.R. 1969. Guess who?., Papers from the 5th Regional Meeting of Chigago Linguistic Society, 252-286