29. The method of claim 28 , further comprising: providing a threshold that specifies how close in physical proximity two occurrences of the search term have to be to be clustered, where, when grouping the occurrences of the search term into clusters, the method includes: grouping the occurrences of the search term into clusters based on the threshold.
29. The method of claim 28 , further comprising: providing a threshold that specifies how close in physical proximity two occurrences of the search term have to be to be clustered, where, when grouping the occurrences of the search term into clusters, the method includes: grouping the occurrences of the search term into clusters based on the threshold. 30. The method of claim 29 , where the threshold is proportional to a number of pages in the document.