TASK DEFINITION: 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].
PROBLEM: Verify if the sentiment of the following document towards the entity Malcolm Young is Positive . But if AC/DC's public image was largely defined by Angus's naughty schoolboy  Bon's lascivious pirate and Brian's lusty bricklayer personas  it was Malcom who truly defined the band's lean 'n' mean sound. In addition to serving as the captain of the good ship AC/DC  he was also its chief architect and mechanic  tinkering with riffs and songs as tirelessly as he tinkered with his 1963 Gretsch Jet Firebird  which underwent countless modifications as he strove to unleash the ultimate guitar tone. "He's the engine in the Mack truck that is AC/DC " Anthrax's Scott Ian told Loudwire in 2014. "He's the driving force behind that band; has been since Day One. To the casual listener  they probably don't know who Malcolm Young is ... but Malcom's the guy. He's the greatest rhythm guitar player ever."

SOLUTION: yes

PROBLEM: Verify if the sentiment of the following document towards the entity George W. Bush is Positive . The 43rd president of the United States -- and the last Republican to hold the office before Donald Trump -- didn't mention  the 45th president by name in his speech at the George W. Bush Institute . But Trump -- and his views -- were ever-present in the former President's address.

SOLUTION: yes

PROBLEM: Verify if the sentiment of the following document towards the entity Mariano Rajoy is Negative . Rallies were held Saturday in Madrid  Barcelona and other cities to demand that  Rajoy  and Puigdemont negotiate to find a solution to Spain's worst political crisis in nearly four decades.

SOLUTION:
yes