1. A method of identifying a significant phrase in a document, the method comprising: reading a sequence of words from the document; determining a score for each word in the sequence based on the length of each word; comparing the score for each word in the sequence against a threshold score; and indicating that the sequence of words is a significant phrase if the number of words in the sequence that have the score greater than the threshold score equals or exceeds a predetermined number.
8. The method of claim 1 wherein the threshold score is based on an average of the scores of words in the sequence of words.