25. The non-transitory computer-readable storage medium of claim 18 , wherein determining sentiment scores for the terms in the list of terms comprises determining positive sentiment scores, negative sentiment scores, mixed sentiment scores, and neutral sentiment scores for the terms in the list of terms utilizing a machine learning technique based on the labeled sentences.
25. The non-transitory computer-readable storage medium of claim 18 , wherein determining sentiment scores for the terms in the list of terms comprises determining positive sentiment scores, negative sentiment scores, mixed sentiment scores, and neutral sentiment scores for the terms in the list of terms utilizing a machine learning technique based on the labeled sentences. 26. The non-transitory computer-readable storage medium of claim 25 , having further computer-executable instructions stored thereon that cause the computer to apply a first logistic regression classifier having the positive sentiment scores, the negative sentiment scores, and the mixed sentiment scores as positive coefficients and the neutral sentiment scores as negative coefficients to classify the sentence as having a neutral sentiment or a non-neutral sentiment.