12. A method according to claim 11 , wherein the knowledge map schema include those corresponding to a semantic function of the group consisting of: “Why”, “How”, “So”, “Meaning”, “Analogy”, and “Concept”.
13. A method according to claim 12 , wherein the semantic function of a sentence element is determined according to one or more grammatical rules of the group consisting of: (a) the order in which the sentence element appears; (b) the structure in which it occurs; (c) the type of meaning it expresses; (d) the type of affixes it takes; (e) Boolean predicates that the content must satisfy; (f) data types governing the content of elements and attributes, and (g) more specialized rules such as uniqueness and referential integrity constraints.