Text: Script's primary power, wrote Edmund Morris, Reagan's biographer, in a 1995 reflection on the letter, is to convey the cursive flow of human thought, from brain to hand to pen to ink to eye--every waver, every loop, every character trembling with expression.
Entailment: Conveying the flow of human thought is the primary power of Script.
Contradiction: Edmund Morris has never written a biography on Reagan.