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].

[EX Q]: What is the sentiment of the following document towards the entity Christian Wulff ? German President Christian Wulff said here Friday that Germany is willing to deepen cooperation with China in various fields and raise bilateral ties to a new height.
[EX A]: Positive

[EX Q]: 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.
[EX A]: Neutral

[EX Q]: What is the sentiment of the following document towards the entity Ines Garcia Zarate ?  He  remains in the custody of the San Francisco Sheriffâs Department and will be handed over to U.S. Marshals on warrants stemming from the federal charges  said sheriffâs department spokeswoman Nancy Crowley.
[EX A]:
Neutral