It's a path visualization from the starting and ending coordinates with classification of the entanglement recorded.
The second data source was just natural entanglements that occurred, not the plastic ones... kicking myself for not starting with the first data source. I'll probably end up doing the same thing for plastics.
If you go to the bottom of the linked article to the source reference and click article it takes you to the original work. The data sources are linked at the end of that work.
1 - https://static-content.springer.com/esm/art%3A10.1038%2Fs414...
2 - https://static-content.springer.com/esm/art%3A10.1038%2Fs414...
3 - https://static-content.springer.com/esm/art%3A10.1038%2Fs414...