2. The method of claim 1 , wherein the step of determining the phrase weighting of the sequence of words includes combining the centrality value for each of the identified words.
2. The method of claim 1 , wherein the step of determining the phrase weighting of the sequence of words includes combining the centrality value for each of the identified words. 3. The method of claim 2 , wherein the step of determining the phrase weighting of the sequence of words includes determining a weighted average of the centrality value for each of the identified words.