7. The method of claim 1 wherein the canonicalized format supports proximity date querying in combination with a second type of date querying of date querying selected from a group comprising specific date querying, hierarchical date querying, and range date querying.
7. The method of claim 1 wherein the canonicalized format supports proximity date querying in combination with a second type of date querying of date querying selected from a group comprising specific date querying, hierarchical date querying, and range date querying. 8. The method of claim 7 wherein the location and span of the date occurrence is included in the package.