8. The system of claim 1 , wherein the computer processing system is further configured to: count in the document the frequencies of the plurality of property names; sum the frequencies of property names in the document to produce a total count; and calculate the relevance score using the total count.
8. The system of claim 1 , wherein the computer processing system is further configured to: count in the document the frequencies of the plurality of property names; sum the frequencies of property names in the document to produce a total count; and calculate the relevance score using the total count. 9. The system of claim 8 , wherein the frequencies of the plurality of property names is counted up to a predetermined upper bound, wherein the relevance score is calculated using a ratio of the total count to the predetermined upper bound, wherein the total count is set to be equal to the predetermined upper bound if the total frequencies of the plurality of property names exceed the predetermined upper bound.