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].

[EX Q]: Verify if the sentiment of the following document towards the entity Christian Wulff is Positive . 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.
 Wulff made the remarks when meeting with Chinese State Councilor Ma Kai.
 Wulff said that in recent years  Germany-China relations have witnessed frequent exchanges of high-level visits  the deepening of mutual understanding between the two peoples and an increasing integration of bilateral interests.
 He added that both sides also share similar positions on issues like opposing protectionism and maintaining financial stability.
 Germany will always keep its door open to China and looks forward to promoting cooperation with China in all fields  Wulff said. He also spoke highly of China's great contributions to the world economic recovery.
 Stressing that China attaches great importance to its relations with Germany  Ma said that the strategic partnership forged by leaders of the two countries in July has offered a new framework for broadening bilateral cooperation from a strategic perspective.
 China is ready to make joint efforts with Germany to enrich the content of the strategic partnership and promote world peace and development  Ma added.
 Ma briefed the German minister on China's economic situation and its macro- control policies.
[EX A]: yes

[EX Q]: Verify if the sentiment of the following document towards the entity Clinton is Positive . Story highlights Sen. Susan Collins said Clinton lawyer Marc Elias should be recalled to the Senate intelligence committee
In closed-door meetings with congressional Russia investigators in recent weeks   Clinton campaign chairman John Podesta and former Democratic National Committee chairwoman Debbie Wasserman Schultz  denied knowing who funded Fusion's opposition research  three sources familiar with the matter told CNN last week
" They  absolutely need to be recalled " the Maine Republican said on CBS's "Face the Nation." "It's difficult to imagine that a campaign chairman  that the head of the DNC would not know of an expenditure of this magnitude and significance  but perhaps there's something more going on here."
A source familiar with the matter told CNN on Tuesday that the law firm Perkins Coie  as part of its representation of the Clinton campaign and the DNC  retained Fusion GPS and entered "into an engagement for research services that began in April 2016 and concluded before the election in early November."
[EX A]: yes

[EX Q]: Verify if the sentiment of the following document towards the entity Chilton is Positive . However   former market regulator Bart Chilton  believes trading bitcoin futures will be safe and could actually help stabilize the cryptocurrency   he  told CNBC on Thursday.
Chicago-based Cboe Global Markets is set to launch bitcoin futures on Sunday  and CME  the world's largest futures exchange  is planning to launch its futures product next week. Both exchanges are regulated by the Commodity Futures Trading Commission  which  Chilton  used to head.
"They know what they are doing in these markets. CME is the most liquid  diverse traded futures contracts around the world "  Chilton  said in an interview with CNBC's "Power Lunch."
Chilton said the CME and Cboe know what the risks are and are very adept at setting their margins  which are constantly adjusted in things that are more volatile.
 Chilton  has long been a proponent of regulating the digital currency  which has no central authority.  Its  transactions are recorded in an anonymous public log called the blockchain.
"It doesn't have to be a full-throated regulation that thwarts innovation. I support digital currencies. But there needs to be some consumer protections "  he  said.
[EX A]:
yes