config A
    bool
    select n
    select m
    select y
    select UNAME_RELEASE
    select "n"
    select "m"
    select "y"
    select "UNAME_RELEASE"
    imply n
    imply m
    imply y
    imply UNAME_RELEASE
    imply "n"
    imply "m"
    imply "y"
    imply "UNAME_RELEASE"