2. The method as claimed in claim 1 , wherein organizing the plurality of query subjects and the plurality of relationship paths includes: identifying query subjects with a plurality of relationship paths; including a first identified query subject of the identified query subjects in a first subject area grouping; including a joinable query subject that is joinable to the first identified query subject; and including a relationship path of the plurality of relationship paths joining the first identified joinable query subject to the joinable query subject in the grouping.
3. The method as claimed in claim 2 , further comprising: including the grouping in a further hierarchical grouping; including a second query subject in the further grouping that is joinable to a query subject included in the grouping; and including a further relationship joining the second query subject to the query subject included in the grouping.