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 Warren Buffett ? Warren Buffett: My Greatest Investing Advice And The Investments Everyone Should Make

SOLUTION: Neutral

PROBLEM: What is the sentiment of the following document towards the entity Ayatollah Ali Khamenei ?  Khamenei  said on  his  website that  he  would address the nation about the events âwhen the time is rightâ.

SOLUTION: Neutral

PROBLEM: What is the sentiment of the following document towards the entity Ricardo Anaya ? MEXICO CITY (Reuters) - Left-wing Mexican presidential candidate Andres Manuel Lopez Obrador has an 8-point lead over rivals  a newspaper poll showed on Thursday  even as  second-place candidate Ricardo Anaya  has narrowed the gap since the previous survey.

SOLUTION:
Positive