RecordType - Relationship data display in summary page

Hi,

I have a main recordType along with few relationship.

Now when I try to show one of the field data from the sub relationship, it was showing like a continuous data even though those are multiple record columns.

I would like to show some type of character like ";" at the end of each column data. Example x; y; z instead of xyz

Can someone advise on this. Thanks.

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