Hierarchical Tree Diagram with Nodes

A clear, abstract representation of a hierarchical tree diagram is depicted, showcasing a root node at the top that branches down through two levels of internal nodes to a final level of leaf nodes. Each node is illustrated as a simple blue circle, connected by straight blue lines, effectively demonstrating parent-child relationships within a structured data or organizational layout. The dark background ensures the blue lines and circles stand out prominently for easy understanding of the hierarchy.

tree - diagram - hierarchical - data structure - nodes - network - binary tree - connections