Methods, apparatuses, and computer program product are described herein configured to transform an input model into a format that can be expressed causally in one or more phrases with a narrative representation. The methods, apparatuses, and computer program product may be configured to obtain the input model representing a data set composed of a plurality of nodes, a plurality of edges, and a plurality of paths and identify a path of maximal significance. The methods, apparatuses, and computer program product include identifying a subset of nodes from the plurality of nodes and a subset of edges from the plurality of edges associated with the path of maximal significance. The methods, apparatuses, and computer program product are configured to generate, using a natural language generation system, one or more phrases with a narrative representation describing the subset of nodes and the subset of edges associated with the path of maximal significance.