... Asher, 1993; Knott and Sanders, 1998) arenot easier to apply either because they assumethe ability to automatically derive, in addition to the semantics of the text spans, the intentions andillocutions ... “negative polarity” while others about“contrast”. Some theories refer to “causes”, some to “potential causes”, and some to “explanations”. Butultimately, all these theories acknowledge that ... us access to general purpose knowledgebases that assert that “similar(libya,rwanda)”.The approach we advocate in this paper is in somerespects less ambitious than current approaches to discourse...