This map of Chinese provinces visualizes the number of people with unknown affection types, alongside other categories like social, relative, and travel connections. The map renders geographic boundaries using `d3.geoPath` and `geoMercator`, with circles scaled via `d3.scaleSqrt` to represent counts for each province. The choropleth fill, using `d3.scaleOrdinal`, encodes province IDs, while hover effects highlight regions. Data comes from a CSV joined with TopoJSON from a remote GitHub source. A size legend is custom-built to aid interpretation.