The presence of information in electronic _____________ on real-time basis - and the availability of advanced natural language processors - helps one measure sentiment of any new information on a continuous basis. Whether an investor will act rationally _____________ availability of information depends on the 'effort' that the investor_____________ to put in processing such information. Vendors who provide sentiment scores on news are - in a way - reducing the mental effort _____________ process any information. They would - therefore - argue that an investor needs to spend a fraction of her limited attention span to act on available sentiment.