W. Labov ( 1973 ) discussed sentences of the form * This is a chair but you can sit on it .
the boundaries of words and their meaningsquot
W Labov
In either formalization we get BUT_Cl as a consequence : Since `` laws '' can not be deleted , BUT ca n't be applied , and hence its use in those kinds of sentences would be incorrect . W. Labov ( 1973 ) discussed sentences of the form * This is a chair but you can sit on it . The sentence is incorrect , since the function `` one can sit on it '' belongs to the core of the concept `` chair '' ; so -- contrary to the role of `` but '' -- the sentence does not contain any surprising new elements .
W. @@CITATION discussed sentences of the form * This is a chair but you can sit on it .