A clean vector illustration shows an organisational hierarchy tree diagram against a light grey background. The diagram displays five horizontal levels arranged vertically, with each level containing circles representing positions connected by straight black lines. The top level contains a single dark blue circle, branching into three light blue circles at the second level, five white circles at the third level, seven grey circles at the fourth level, and nine black circles at the bottom level. Each circle is the same size within its level, creating a balanced, symmetrical structure. Professional vector illustration with crisp lines and geometric shapes against a solid background.669
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