Determine the arousal intensity of the writer's mental state conveyed in the sentence "Col­­o­n­na­­ded public buildings, iron balconies, winding streets, flagstoned squares and the many churches all speak of the Portuguese inheritance as well as the Chinese, a fusion of East and West that has produced the unique Macanese culture.". Provide a score from 0 to 1, where 1 signifies very energetic and 0 signifies very calm.