Determine the valence intensity of the writer's mental state conveyed in the sentence "Powell said his discussions with Mahathir "touched on the case" of his former deputy, Anwar Ibrahim, who is serving a 15-year sentence on charges of sodomy and abuse of power after trials that Powell said the United States had "always felt" were flawed.". Provide a score from 0 to 1, where 1 signifies very positive and 0 signifies very negative.