How to prepare multiple rows with two different colums

Below are the results code...

let
Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45W8nRR0lFySSxJVDCEMYyUYnWilQwNDAysFYAkSDwRiJNgwkZATjIQp8AEjMHqTMCkKVAiFYjTlGJjAQ==", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [#"(blank)" = _t, #"(blank).1" = _t, #"(blank).2" = _t]),
#"Changed Type" = Table.TransformColumnTypes(Source,{{"(blank)", type text}, {"(blank).1", type text}, {"(blank).2", type text}}),
#"Promoted Headers" = Table.PromoteHeaders(#"Changed Type", [PromoteAllScalars=true]),
#"Changed Type1" = Table.TransformColumnTypes(#"Promoted Headers",{{"ID", type text}, {"Data 1", type text}, {"Data 2", type text}}),
#"Split Column by Delimiter" = Table.SplitColumn(#"Changed Type1", "ID", Splitter.SplitTextByDelimiter(";", QuoteStyle.Csv), {"ID.1", "ID.2", "ID.3"}),
#"Changed Type2" = Table.TransformColumnTypes(#"Split Column by Delimiter",{{"ID.1", Int64.Type}, {"ID.2", Int64.Type}, {"ID.3", Int64.Type}}),
#"Unpivoted Columns" = Table.UnpivotOtherColumns(#"Changed Type2", {"Data 1", "Data 2"}, "Attribute", "ID"),
#"Removed Columns" = Table.RemoveColumns(#"Unpivoted Columns",{"Attribute"}),
#"Reordered Columns" = Table.ReorderColumns(#"Removed Columns",{"ID", "Data 1", "Data 2"})
in
#"Reordered Columns"