Returning now to content planning, this process may be expansive or very limited in scope; for example, it may be aimed at providing details of a complex object, set of events, or argument, or it may seek to present no more than a single fact, greeting or acknowledgment. We leave discussion of the strongly interactive type of content planning needed for dialogue to the following section, while we comment here on the more expansive sorts of text generation. In this case the organization of the information to be presented is the central concern. For example, the events of a narrative or the steps of a procedure would generally be arranged chronologically; arguments for a conclusion might be arranged so that any subarguments intended to buttress the presumptions of that step (immediately) precede it; descriptions of objects might proceed from major characteristics and parts to details.