Task: Analyze the valence intensity exhibited in the sentence, assigning a score on a continuum from 0 (extremely negative) to 1 (extremely positive), capturing the emotional context conveyed.
Sentence: "Time Magazine called his life an American dream. Carl McCall, Army lieutenant, state senator, ambassador to the United Nations, school board president, Citibank vice president, and one of the most effective comptrollers in New York history."
Intensity score: 