Collection Item Print ProductRegion.Description only if Product.Description is not set

Design help General
3

Oh ok, i’m really new to webflow. Heres the read only link I think? Webflow - Research's Top-Notch Site

This is my experimental site.

I think my problem analogous to this php code

/*
DB SCHEMA:
Product: ProductId, Name, Description
ProductConfiguration: ProductId, Region, Description
*/
$country = 'canada'; // Assuming I visited the url https://site.com/productregion/canada 
$results = mysql_fetch("SELECT Name,Description FROM Product WHERE ProductId IN (SELECT ProductId FROM ProductConfiguration WHERE Region = '$country')");
foreach($results as $row) {
 echo $row['Product.Description'] ? $row['Product.Description'] : $row['ProductConfiguration.Description'];
}


ERROR: ProductConfiguration.Description is not set

The error occurs because I don’t know how to select the ProductConfiguration.Description while looping through the Product collection