Considering the overall intentions of a news article, it is rare to have a Transition relation on the macro-level, and most of them have a Contrast relation.
based on the micro discourse relation representation that has 4 categories and 17 relations defined by CDTB, we delete the relations, such as Transition, Concession and other relations in the Transition category, and finally form the macro discourse relationship representation with 3 categories and 15 relations, as shown in Table 2.