The dissertation is dedicated to researching the discourse structure in Northern Mansi (Finno-Ugric < Uralic). The research includes factors that influence the behavior of the following linguistic categories in Northern Mansi: voice and agreement (subject agreement vs. object agreement vs. passive voice), referential form of the agent and patient participants (e.g. full noun phrase vs. personal pronoun vs. zero-reference and others), discourse particles ta and ti. These categories were researched based on a data set of Northern Mansi narratives gathered in the 1930s. The dataset was annotated for a number of parameters, and a simple statistical analysis based on the decision tree method was applied. The work also includes the results of this analysis, limitations of the approach and possible extensions of this research.