1. A method for identifying a context for parsing a natural language expression, the method comprising using at least one hardware processor to: interface with a database comprising at least one table, wherein the at least one table comprises a plurality of rows addressed according to a plurality of context compartments, wherein each of the plurality of context compartments represents a context and comprises a subset of one or more of the plurality of rows, and wherein each of the plurality of rows represents a concept and comprises an outline field that comprises an indication of an order of that concept in the context represented by the context compartment that comprises the row; receive one or more input expressions comprising a plurality of language elements; perform a first search that comprises searching the at least one table to identify rows representing concepts that correspond to one or more of the plurality of language elements and rows representing concepts that correspond to combinations of two or more concepts represented by previously identified rows until a first row representing a higher-order concept is identified; based on the identified first row, set a first one of the plurality of context compartments as a current context compartment for subsequent searching; and, after setting the first context compartment as the current context compartment, perform a restricted second search that comprises only searching the first context compartment to identify rows representing concepts that correspond to one or more of the plurality of language elements and rows representing concepts that correspond to combinations of two or more concepts represented by previously identified rows until a second row representing a concept corresponding to an entirety of at least one of the one or more input expressions is identified or no such second row is determined to exist in the first context compartment.