BOPAlgo_Splitter results

Hello!

We are using BOPAlgo_Splitter to split a solid with a plane. The results are correct, for the special case the result is a compound of 3 solids. I want to logically group the results, e.g. in the attached image the red parts should be one shape (compound) and the orange shape should be one shape (one side of the plane and the other side of the plane). Does the BOPAlgo_Splitter store the information somewhere that we can do this, or do we have to find the correct parts on our own?

Thank you for helping.

BR
Alex