This visualization renders a semantic knowledge graph from linguistic JSON data, showing propositional relationships such as predicates, referents, and nested clauses. It builds nodes and links recursively from the `ContextTrackingData` structure, using D3 v4’s force simulation to layout the graph. The rendering combines SVG for nodes and links with Canvas 2D text measurement to size labels. WebCola is also loaded, though the primary layout is driven by `d3.forceSimulation`. The example demonstrates hierarchical clause decomposition, including recursive structures for reported speech and causation.