Filter on Resource Type when searching

I am having a problem filtering on the resource type when searching.

I added "cm_resourcetype" to my predefined properties.

When doing an advanced search I would like to select the resource type from the predefined properties (listed as "type") and when I enter the following to find only documents that are Normal Documents

http://sap.com/xmlns/cm/framework/normal-resource-typehttp://sap.com/xmlns/cm/framework/normal-resource-type">http://sap.com/xmlns/cm/framework/normal-resource-type>

I do not get any results.

I tried also using "Normal Document", "descrNormalDocument", and "normalrt" with no luck. Anyone know how to do this?