... different to attempting to classify modal mnbiguity ~a.n and must correspond to the inodal operators of passibility and necessity Modal constructs are analysed in terins of these operators, a context ... appropriate modal operator As with Groenendijk and Stockhof, wh-questions are reduced to yes/no questions It should follow from tile above that Groenendijk and Stockhof's results carry over into this ... enough to furnish fonnal semantic interpretations "relative" to some context: a satisfactory approach to a formal but cognitively attractive characterization o f "helpful" answers seems to war,...