Offer geometric shapes for node bubbles - if the topic has three important points, use a triangle and attach children to the points.
Three points = triangle / four points = rectangle, square / five points = star and so on. Allow 'children' to be placed at the appropriate position to make that point. This is visually quicker to read and remember. Also, please allow horizontal / landscape format for the page design.
7
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A Bandish
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