SPARQL column header space support?

Hi all,

It is known that in the SQL standard we can escape the spaces in the column name using the double quote (“) as follows:

SELECT "Balance" as "Account Balance" FROM “Account”, where the “Account Balance” is an alias name of the column "Balance" in the table of “Acount”.

Does anyone know whether SPARQL standard has such feature of allowing space in the column header of the result set? Sort of like

SELECT ?Balance AS "Account Balance" WHERE .......

If not, does W3C plan to support this?

Thanks for any help in advance!

Regards,

Yingjie