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].

Verify if the sentiment of the following document towards the entity Ken Brown is Negative .  Brown  leaves for Tanzania on Thursday  and the group will begin their climb on Sunday. If all goes as planned  it should take six days to reach the summit.  Brown  says  he âs not concerned about whether or not  he  will make it to the top  as  he  said  he  believes  he âs already hiked the tallest mountain anyone can with Dr. Bilimoria.
no

Verify if the sentiment of the following document towards the entity Murphy is Positive . Also on Wednesday   Murphy  is introducing a gun control bill in support of universal background checks  but  he  said  he  is realistic about its chances of passing. "I'm not naÃ¯ve about our chances to pass this bill in this Congress  but it's important to have this as a fulcrum point for the movement  " Murphy  said  according to The Washington Post.
yes

Verify if the sentiment of the following document towards the entity Volkan Oezdemir is Negative . âI wanted to fight for the belt as fast as I can because I know Iâm capable of anything â said  Oezdemir . âIâm there to win. In the UFC I wanted to fight the top (fighters) right away. Itâs the place for the top guys in the world. I fought my first fight against the No. 6 in the world on two weeksâ notice and I just kept on going. I fought two months later and six weeks after that I was fighting for the third time. Always against a ranked opponent and Iâm ready for the champion now.â

no