Distinguishing psychological Given/New from linguistic Topic/Focus makes things clearer

The paper suggests that there is no contradiction in cleft sentences focalizing information which was already introduced by the preceding context, because being already active in discourse (i.e., Given) is not the same as being linguistically encoded as a Topic, and Given information can be focalized in discourse. Clefts should be explained precisely as constructions devoted mainly to focalizing already active information. A side-effect of the analysis is to assess that the role of syntax in expressing Information Structure is a secondary one, because syntactic triggers of Information Structure only work when accompanied by prosodic triggers, whereas prosodic means can work alone.