public override bool Equals(object obj)
{
PositionTagged <T> other = obj as PositionTagged <T>;
return(other != null &&
other.Position == Position &&
Equals(other.Value, Value));
}
public AttributeValue(PositionTagged <string> prefix, PositionTagged <object> value, bool literal)
{
Prefix = prefix;
Value = value;
Literal = literal;
}