I'll create a node-based UI using ReactFlow with three connected nodes that show sentence affinity. When you click on a node, it will open a floating window on the right showing the sentence in a broader context.

This ReactFlow implementation creates a node-based UI for comparing sentence affinity with these features:

1. Three connected nodes, each containing a different sentence
2. Edges between nodes showing affinity scores between sentences
3. Click on any node to open a floating panel on the right side
4. The floating panel shows the sentence highlighted within its broader context
5. Clean UI with the ability to close the detail panel

The implementation uses:

• Custom node types for the sentence nodes
• A detail panel that appears when a node is selected
• Highlighting of the selected sentence within its context
• Smooth animations when opening/closing the detail panel

You can interact with the nodes by clicking on them, and the flow is fully responsive.