[sv-bc] Is range/signed specification part of explicit data type

Hi,
As per the point 9 of "A.10 Footnotes (normative)":
"In a data_declaration, it shall be illegal to omit the explicit
data_type before a list_of_variable_decl_assignments unless the var
keyword is used."

So please consider the case:
const [1:0] aa1 = 2'b11; // Is it legal?
const signed aa2 = 1; // Is it legal?
const aa3 = 1; // It is obviously illegal

One standard simulator passes the first two declaration, though as per
the above footnote, it seems to me all the declaration are illegal.
Please let me know if my understanding is incorrect.

-- 
Regards
Surya
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