Given a sentence, an entity and its sentiment towards the entity, verify if it is the correct sentiment towards the entity. Answer should be yes or no. Note that URLs in the text have been replaced with [Link].

[EX Q]: Verify if the sentiment of the following document towards the entity Porter is Neutral .  The probe  comes as the White House  more than a week into the scandal  has continued to offer shifting explanations of the circumstances of  Porter 's tenure as a top aide to President Donald Trump.
[EX A]: yes

[EX Q]: Verify if the sentiment of the following document towards the entity Valerie Bauerlein is Neutral . 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.
[EX A]: yes

[EX Q]: Verify if the sentiment of the following document towards the entity Mount Agung is Neutral .  Mount Agung’s  eruptions bear similar trademarks to Pinatubo which is why NASA is hoping to send balloons into the air fitted with gadgets to measure the effects of the volcanic eruption on the Earth’s atmosphere. NASA hopes to study the effects for years to come.
[EX A]:
no