/usr/lib/ubuntu-ui-toolkit/examples/ubuntu-ui-toolkit-gallery/gallery is in ubuntu-ui-toolkit-examples 0.1.46+14.04.20140408.1-0ubuntu1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 | #!/bin/bash
SCRIPT_DIRECTORY=`dirname $0`
/usr/lib/*/qt5/bin/qmlscene $@ $SCRIPT_DIRECTORY/ubuntu-ui-toolkit-gallery.qml
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