TASK DEFINITION: Given a sentence and an entity, the task is to select the authors sentiment towards the enity. Sentiments can be Positive, Neutral and Negative. Select Positive if the sentence expresses a positive view towards the given entity or praises its quality or skills. Select Neutral if the sentence expresses no clear view towards the entity or has equal amounts of positive and negative statements or expressing some fact/quote by someone else. Select Negative if the sentence expresses a negative view towards like harsh remarks, criticizing entities action/decision etc. Note that URLs in the text have been replaced with [Link].
PROBLEM: What is the sentiment of the following document towards the entity Mario Sanabria ? “They told  him  to drop the sword   he  advanced ” a high-ranking law enforcement source told The Post.

SOLUTION: Neutral

PROBLEM: What is the sentiment of the following document towards the entity David Letterman ?  And sometimes Letterman goes too far. In June  he apologized to Sarah Palin for a joke about her daughter getting "knocked up" by Yankees star Alex Rodriguez. After hesitating for several days  Letterman said: "I told a joke that was beyond flawed  and my intent is completely meaningless compared to the perception."

SOLUTION: Neutral

PROBLEM: What is the sentiment of the following document towards the entity David Johnson ?  Johnson   25  was part of a 12-member Army special forces unit accompanying 30 Nigerien forces when they were attacked in a densely wooded area by as many as 50 militants.

SOLUTION:
Positive