grass attribute.

[Taravudh Tipdecho]

I used v.out.ascii command to export grass data that just presented in
x,y coordinate.
Ex..
A 5
    xxxxxx yyyyyy
    xxxxxx yyyyyy
    xxxxxx yyyyyy
    xxxxxx yyyyyy
    xxxxxx yyyyyy
A 4
    xxxxxx yyyyyy
    ....
    ...
How should I get the attribute of this vector file from grass? Where is
it? and How to link these attributes with x,y coordinate in case of
polygon data.

Thank you,
Taravudh