Advance selection query don't work

Hallo,

I have a question about a query for select components in assembly from custom properties, that don't work:

I use SolidWorks 2015 Italiano

My string in the .sqy file is:

"Proprietà personalizzate" "MATERIALE" "=" "K110"

But it don't works, where I wrong?

Thanks a lot to everybody

Roberto

SolidworksApi macros