I've loaded the information from the article into a Neo4j graph database, creating nodes for the 10 large companies that dominate the grocery store shelves and their respective brands. The visualization shows these companies in red and their brands in blue, with many products overlapping between stores. After researching two nearby grocery stores, Tesco Express and Sainsbury's Local, I found that Kellogg's had the most products for sale, with two-thirds of cereals coming from the original 10 companies and one-third from other companies. The graph also shows relationships between the companies, brands, and their documentation on sustainability and corporate values. This knowledge graph can be used to power search engines or make product recommendations based on consumer preferences and values.