5. The system of claim 4 , wherein determining whether the query sequence ends in a word boundary comprises: selecting a subsequent character the subsequent character being a character that is next in sequence to a character that is last in the subsequence of the query sequence; determining that the query sequence ends in a word boundary if the subsequent character is indicative of a word boundary; and determining that the query sequence ends in a non-word boundary if the subsequent character is indicative of a non-word boundary.
5. The system of claim 4 , wherein determining whether the query sequence ends in a word boundary comprises: selecting a subsequent character the subsequent character being a character that is next in sequence to a character that is last in the subsequence of the query sequence; determining that the query sequence ends in a word boundary if the subsequent character is indicative of a word boundary; and determining that the query sequence ends in a non-word boundary if the subsequent character is indicative of a non-word boundary. 6. The system of claim 5 , wherein: the subsequent character is indicative of a word boundary when the subsequent character is a space character; and the subsequent character is indicative of a non-word boundary when the subsequent character is a letter character.