This example visualizes a multi-state pattern discovery of SO2 emission trends from 2008 to 2018. Clicking a button triggers an animated rendering of the data, which appears as a large SVG area. The visualization uses D3.js v6 to bind data to SVG elements, applying custom colors per state and animating changes through JavaScript function calls. Data is pre-loaded as arrays of monthly average SO2 values for each state, rendered in a static layout with a refresh control.