Operator movement, referentiality and intervention

(a) What does it mean for a CP to be referential, and how does referentiality interact with the related properties of factivity and givenness? Although the core idea that CPs contrast for the property of referentiality, which in turn corresponds to structural differences, does not originate in our work (cf. de Cuba & Ürögdi 2009a,b, 2010), in the interest of clarity we attempt to provide some insight into this issue. (b) The launch site of the operator in referential phrases. Although our proposal on this issue is rather tentative, below we review some additional evidence in its favor and reflect on Lipták’s (this volume) objections to the Hungarian data we cite, as well as on Aboh’s proposal for an alternative launch site based on Gungbe. (c) The technical details of intervention, and the feature make-up of interveners. The analysis we present in the core paper is an attempt at elegantly capturing a diverse set of data – but, as pointed out by several of our reviewers, the relevant facts are in fact extremely complex and judgments are often unstable. Below, we discuss the potential counterexamples noted by Krapova (this volume) and outline an approach to these.