Given a document and an entity the task is to select the author's sentiment towards the entity. Sentiments can be Positive, Neutral and Negative. Select Positive if the article expresses a positive view towards the given entity or praises its quality or skills. Select Neutral if the document 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 article 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 Alan Carter ? The concentration  or number of insulin units in the liquid solution  was labeled as 100 units per milliliter. But they averaged less than half of that  and none met the 95-unit minimum standard  said lead researcher Alan Carter  a pharmacist and adjunct instructor at the University of Missouri-Kansas City School of Pharmacy.
 Carter  thinks the insulin may have gotten too warm somewhere between the factory and the pharmacy  causing some of the molecules to break apart.
 Carter  wondered whether  his  results might help explain why insulin users sometimes find a dose doesn't work as well as normal. Doctors usually attribute that to patient error: not injecting enough insulin before a meal  not following dietary guidelines  or skipping exercise.
 Carter   who had a limited budget for  his  study  acknowledges that it was too small and that  his  results may be flawed. He notified Novo Nordisk and Eli Lilly of his results in hopes someone would do a bigger follow-up study.
Neutral

What is the sentiment of the following document towards the entity Pope Francis ? A smiling Pope Francis  drew a big crowd at an outdoor Mass in the Chilean capital Tuesday during the first full day of  his  six-day visit to Chile and Peru.
 Francis  started the day with a speech in which  he  pleaded for forgiveness for the "irreparable damage" done to children who were raped and molested by priests.
 The pope  celebrated Mass in O'Higgins Park before a crowd estimated at about 400 000 people.  He  later brought some inmates to tears during an emotional visit to a women's prison.
 His  final public event was a meeting with priests and nuns at in a full Cathedral of Santiago ablaze with lighted candles.
Positive

What is the sentiment of the following document towards the entity Valerie Bauerlein ? This year  there is a tree shortage. Most growers blame the tightened supply on the Great Recession  says  Valerie Bauerlein  who covered the story for The Wall Street Journal .
A decade ago  "we were in a global economic malaise  " Bauerlein  tells NPR's Michel Martin. "And Christmas tree growers couldn't sell the trees that they had cut  and for the price that they had in them  so then they planted less."
Christmas trees  as magical as they might seem  are still an agricultural crop. "Trees grow about a foot a year  " Bauerlein  says. "So eight  10 years later  there's a shortage. There's more demand [now] because the economy's prospering. And there are fewer trees to meet that demand." The total acreage in production has dropped at least 30 percent since the early 2000s  she says.
Even if you've seen plenty of trees in lots or in cut-your-own tree farms around your area this season  you'll likely be paying more the farther you live from the biggest tree-producing states. Oregon and North Carolina now face reduced selection and higher prices   Bauerlein  says.
There is also been a movement of growers exiting the business. In recent years  "you also saw a lot of dropout of growers themselves  especially smaller growers  in western North Carolina â one of the main producers" of trees   Bauerlein  says. "You're also seeing fewer growers and [less] acreage in Oregon  which is the biggest producer; they account for about 30 percent of the market." A lot of growers in Oregon are turning to grapes for wine and  a smaller number  to cannabis amid the booming marijuana industry  she says.
This year   Bauerlein  says  "it's the high-end trees that are really coveted: The Fraser firs out of Oregon that are tougher to find  especially at the height of 8 feet or above."

Neutral