This example visualizes a multi-stage flow diagram using a Google Charts Sankey diagram. It shows the movement of migration or trade weights between countries across three sequential layers: from nations like Brazil, Canada, Mexico, and the USA, through European intermediate points, and finally to Asian destinations such as China, India, and Japan. The interactive diagram encodes connection strength through link width, with node colors defined in the options. The code uses the Google Charts `sankey` package to render the data from hardcoded arrays in the HTML file.