Introducing problem statements

We are living in a competitive world. Before buying any product and investing our time or money in anything, we try to find out what others think about that product(s) or service(s). We try to analyze their reviews or opinions. If we find them positive and trustworthy, then we buy the product and invest our money or time in that particular service. On the other hand, if we find these opinions or reviews negative, then we might not buy the product and not invest our money or time in that particular service. In the current era of the internet, it is easy to find reviews on social media platforms, blogs, news sources, and so on. This activity of analyzing reviews will be useful for consumers as well as makers of products or service providers. This is because, based on the reviews of their customer, they can change their product effectively, providing more satisfaction to their customers and make a good profit from that product or service. I have already given...