Let's analyze the valence intensity of the sentence "This was one of most important quotes from the article: “Invariably,” says Craig, “a black-themed book will come up for consideration, and there won’t be anyone of color to put in an opinion, or there’ll be one, who shouldn’t bear the burden alone.". Assign a real number between 0 and 1, where 0 indicates extremely negative and 1 indicates extremely positive.