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].

What is the sentiment of the following document towards the entity Topham ? "The conventional approach to developing flu vaccines today is one in which we perform surveillance worldwide " said David Topham  director of the New York Influenza Center of Excellence and professor of microbiology and immunology at the University of Rochester in New York.
Neutral

What is the sentiment of the following document towards the entity Chisako Kakehi ?  She  reportedly inherited around one billion yen ($8.8 million) in all  although  she  later lost some of it through the stock market.
Neutral

What is the sentiment of the following document towards the entity Janet Yellen ? President Donald Trump is set to announce his nomination on Thursday afternoon with Fed Governor Jerome Powell  a soft-spoken centrist who has supported  Yellen ’s gradual approach to raising rates  seen as having a lock on the job.

Neutral