Determine the valence intensity of the writer's mental state conveyed in the tweet "YoYo.com: Buy Kid's Toys at YOYO.COM. FREE 1-2 day shipping both ways, GREAT prices, BEST 24/7 customer service,... http://url_removed". Provide a score from 0 to 1, where 1 signifies very positive and 0 signifies very negative.