Note furthermore that the RST tree contains an evaluation-s relation between 6 and 1-5.
this evaluation-s relation seems to hold rather between 6 and 3-4: What is being evaluated is a chance for the Contras to win Table 6 Comparison for (26) of tree-based RST structure (from Carlson, Marcu, and Okurowski (2002) and our chain-graph-based structure.