Given a document, 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].

Example Input: Verify if the sentiment of the following document towards the entity Medvedev is Positive . Russia's catastrophic wildfires this summer have demonstrated the need to reform the nation's forest protection legislation and the state forestry agency  President Dmitry Medvedev said Wednesday.
 The remarks appeared to reflect Medvedev's desire to take a higher profile on economic and domestic policy issues presently controlled by Prime Minister Vladimir Putin -- though Medvedev stopped short of an open challenge to his powerful predecessor and mentor.
 Putin has taken a highly visible lead in efforts to combat the fires  visiting affected areas and even taking a seat in a firefighting plane while Medvedev was chairing dull official meetings. Many political commentators perceived Putin's action as a sign of his intention to reclaim the presidency in 2012 and a clear warning to Mevedev to stand by.
 Medvedev indicated Wednesday that the prime minister's move to take direct control of the forestry agency  Rosleskhoz  could be insufficient to properly protect the nation's forests in the future.
 "If it's more convenient to work that way  you are welcome " Medvedev told a government meeting focused on forests. "But if it proves insufficient  I reserve the right to radically change those structures."
 He said the blazes had shown that the current law and the existing official structures can't properly protect the forests.
 "It's quite obvious that the legal base and the organizational structure that we have don't fit the purpose " Medvedev said in televised remarks.
 The president also said that the need for changing the current forest legislation also must be carefully analyzed.
Putin and Medvedev both have said they would decide later who will run for president.
 Medvedev avoided any direct criticism of Putin  but said Wednesday the 2006 law had left most of the nation's forests without due oversight.
 He also seemed to defy Putin on another issue -- the construction of a new highway northwest of Moscow that would destroy a forest near the town of Khimki. Putin's Cabinet has continued to support it despite growing public opposition.
Example Output: yes

Example Input: Verify if the sentiment of the following document towards the entity Mitt Romney is Positive . Former Massachusetts Gov. Mitt Romney tweeted out his condolences to affected families and the victims .
Example Output: no

Example Input: Verify if the sentiment of the following document towards the entity Janet Yellen is Negative . Here’s a summary of the Fed’s current predicament  chairwoman Janet Yellen’s latest statement  and what savers need to understand about the central bank’s next move...
So how is the Fed going to justify its plan now? That brings us to  Yellen ’s latest statement...
Low Inflation a “Mystery ” Says  Yellen
Well   Yellen  says lagging inflation is a “mystery ” but not enough of one to keep the Fed from moving forward with its plans.
 Yellen  and  her  colleagues insist that we should take them at their word… that conditions will rise to meet their agenda… that the risks of waiting too long to normalize policy outweigh the risks of normalizing policy too soon.
Example Output:
no