stock status in Google

[MarcoMot0]

Hi, i got the Magento MSemantic extension working in no time without any trouble. Google is even already showing some results only 2 days after implementing!
But I got a queston about stock status. When the inventory level of a product is 0 or less Google will display ' sold out' (or actually in my case, because in Dutch: Uitverkocht)
The item is not sold out at all, it's availabe on request. So a better status would be 'not in stock' (or in Dutch: ' niet op voorraad') 'Sold out' implies that it can not be ordered anymore. Now how on earth do I get Google to show a stock status that fits my situation better?

This now shows as 'sold out'
<div rel="gr:hasInventoryLevel">
	<div typeof="gr:QuantitativeValue">
    	<div property="gr:hasMinValue" content="0" datatype="xsd:float"></div>
        <div property="gr:hasUnitOfMeasurement" datatype="xsd:string" content="C62"></div>
	</div>
</div>


This shows as ' in stock'
<div rel="gr:hasInventoryLevel">
	<div typeof="gr:QuantitativeValue">
    	<div property="gr:hasMinValue" content="2" datatype="xsd:float"></div>
        <div property="gr:hasUnitOfMeasurement" datatype="xsd:string" content="C62"></div>
	</div>
</div>

Is it Google itself that concludes inventory = 0 means its sold out? I suppose I could comment out the lines of code about Inventory in the php-file so it doesn't render inventory level at all, but i'm not sure if that's a wise thing to do.