20. The method of claim 17 wherein the text-to-text semantic score is represented by the following formula; sim ⁡ ( R i , R j ) = 1 2 ⁢ ( ( ∑ Tuple i ∈ R i ⁢ ⁢ ( max ⁢ ⁢ sim ⁡ ( Tuple i , R j ) · idf ⁡ ( Tuple i ) ) ∑ Tuple i ∈ R i ⁢ ⁢ idf ⁡ ( Tuple i ) ) + ( ∑ Tuple j ∈ R j ⁢ ⁢ ( max ⁢ ⁢ sim ⁡ ( Tuple j , R i ) · idf ⁡ ( Tuple j ) ) ∑ Tuple j ∈ R j ⁢ ⁢ idf ⁡ ( Tuple j ) ) ) .
20. The method of claim 17 wherein the text-to-text semantic score is represented by the following formula; sim ⁡ ( R i , R j ) = 1 2 ⁢ ( ( ∑ Tuple i ∈ R i ⁢ ⁢ ( max ⁢ ⁢ sim ⁡ ( Tuple i , R j ) · idf ⁡ ( Tuple i ) ) ∑ Tuple i ∈ R i ⁢ ⁢ idf ⁡ ( Tuple i ) ) + ( ∑ Tuple j ∈ R j ⁢ ⁢ ( max ⁢ ⁢ sim ⁡ ( Tuple j , R i ) · idf ⁡ ( Tuple j ) ) ∑ Tuple j ∈ R j ⁢ ⁢ idf ⁡ ( Tuple j ) ) ) . 21. The method of claim 20 further comprising the step of determining a maximum text-to-text semantic similarity score as determined by the following formula: 
 max sim (Tuple i ,R j )=max j {sim (Tuple i ,tuple j )};tuple j εR j .