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 Sam Nunberg ? Sam Nunberg  a former campaign aide to Donald Trump   said early in Trump's presidential campaign   he  was instructed to help candidate Trump understand the U.S. Constitution.

SOLUTION: Neutral

PROBLEM: What is the sentiment of the following document towards the entity Donald J. Trump ? ...The fact is that Puerto Rico has been destroyed by two hurricanes. Big decisions will have to be made as to the cost of its rebuilding! — Donald J. Trump (@realDonaldTrump) September 29  2017

SOLUTION: Neutral

PROBLEM: What is the sentiment of the following document towards the entity Joshua Grubbs ? SHAPIRO: For  Joshua Grubbs  thinking about school shootings  is a reflex as soon as  he  walks into a classroom.  He  came to teaching in this era of school shootings.  He  was in college near Virginia Tech at the time of the 2007 massacre there in which 32 people died.

SOLUTION:
Positive