vscode markdown sparql syntax highlighting in fenced code blocks

Question

I'm wondering what to do to get the syntax highlighting rdf spqrql query that I write in a Markdown fenced code blocks

so far I noticed that in edit mode I can get a result specified 's' as a language , but:

• sadly, markdown preview seems to ignore it: no effect is obtained

• I do not know if the rules for parsing s have actual correspondence with sparlql

also I found somithing in vscode-fenced-code-block-grammar-injection-example but I'm not sure I understand how it works and I would like to know if there is a simpler solution.