Remove spesific data from list

Hi, I’m am still a beginner in grasshopper,
I have a list of lines (the first line) and I want to remove very specific parts of it (the one that I have on the right) . is there a tool I can use for that?
image

Post your Grasshopper definition with the relevant geometry or data internalised please.

In Grasshopper, removing specific data from a list/tree is often done by ignoring them. A new list/tree is built by selecting or culling the things you want to keep. Many tools exist for that purpose including List Item, Dispatch, Cull Pattern, Tree Branch, etc.