List strings to separate lines

Content Authoring
1

Like the string (“AAA”,“BBB”,“CCC”)as string
AAA,BBB,CCC

We want to list them to the next line like:
AAA
BBB
CCC

How could we do for the relevance?

2 
q: (it as trimmed string) of substrings separated by "," of (("AAA","BBB","CCC")as string)
A: AAA
A: BBB
A: CCC
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