19. A system, comprising: at least one computer hardware processor; and at least one non-transitory computer-readable storage medium storing processor executable instructions that, when executed by the at least one computer hardware processor, cause the at least one computer hardware processor to perform a method for use in connection with generating text, the method comprising: obtaining a plurality of items of content and associated metadata, the associated metadata comprising information indicative of how persuasive at least one of the plurality of items of content is likely to be to a person; obtaining a schema specifying a first set of one or more rhetorical relations; identifying a second set of one or more rhetorical relations among items of content in the plurality of items of content based, at least in part, on the associated metadata, wherein the second set of rhetorical relations is not in the schema; generating a document plan comprising a plurality of rhetorical relations among the items of content in the plurality of items of content, the plurality of rhetorical relations including the first set of rhetorical relations and the second set of rhetorical relations; generating an electronic document comprising natural language text based, at least in part, on the document plan; and providing the electronic document to the person.
23. The system of claim 19 , wherein the plurality of items of content comprises a first item of content and a second item of content, and wherein identifying the second set of rhetorical relations comprises determining whether the first item of content and the second item of content satisfy at least one rhetorical relation based, at least in part, on metadata associated with the first item of content and metadata associated with the second item of content.