6. A method of extracting semantic relationships among entities in a sentence, comprising: accessing at least one data set from a remote storage device specifically programmed to store data that represents documents containing at least one association between two or more entities; identifying a first sentence included in the at least one data set; extracting entities from the first sentence using an extraction engine specifically programmed to extract entities from a sentence; determining a semantic type associated with each of the entities; determining a relationship that exists between two or more of the entities; generating a subsequence that includes one or more semantic types and at least one verb, wherein the one or more semantic types include the semantic type associated with each of the two or more of the entities; calculating a weight value of the subsequence; and storing the subsequence, the weight value, the semantic type associated with each of the entities, and the relationship in a storage device that is specifically programmed to store the subsequence, the weight value, the semantic type associated with each of the entities, and the relationship.
6. A method of extracting semantic relationships among entities in a sentence, comprising: accessing at least one data set from a remote storage device specifically programmed to store data that represents documents containing at least one association between two or more entities; identifying a first sentence included in the at least one data set; extracting entities from the first sentence using an extraction engine specifically programmed to extract entities from a sentence; determining a semantic type associated with each of the entities; determining a relationship that exists between two or more of the entities; generating a subsequence that includes one or more semantic types and at least one verb, wherein the one or more semantic types include the semantic type associated with each of the two or more of the entities; calculating a weight value of the subsequence; and storing the subsequence, the weight value, the semantic type associated with each of the entities, and the relationship in a storage device that is specifically programmed to store the subsequence, the weight value, the semantic type associated with each of the entities, and the relationship. 7. The method of claim 6 further comprising: generating a Chi-Square score value for each of the one or more other subsequences and for the subsequence; and ordering the subsequence and the one or more other subsequences based on the Chi-Square score value of each of the subsequence and the one or more other subsequences.