Power Query - Need help to categorize table based on lookup table

if List.ContainsAll(YourItems,{"W","X","Y","Z"}) then "Category 1" else if List.ContainsAll(YourItems,{"W","X","Y"}) then "
Category 2" else "Category 3"

Use the below code

let
Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("Pcu7DYBQDEPRXVy/gvCnBCRgAn5R9l+DKLEoLPkUVxWCgtl3woqipq5QQ92hlnpCHfWGen/L3w1UdiOV3eRv9W0hqcg9KeQBsw8=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [No = _t, Group = _t, Item = _t]),
#"Grouped Rows" = Table.Group(Source, {"Group"}, {{"Count", each Text.Combine(_[Item],"-")}}),
#"Added Index" = Table.AddIndexColumn(#"Grouped Rows", "Category", 1, 1, Int64.Type)
in
#"Added Index"