combining unstructured/uneven columns

Hi - I have a csv and wanted to combine 4 columns and make a new datasets out of the semicolon-separated column(A).  Problem is, Cols B-E are not structured.  Can someone enlighten me?

Link to CSV:  https://drive.google.com/file/d/1HODvumKwKw8UCBvJIbPHtnhjro7kGxTz/view?usp=sharing

Thanks,

Paul