This was a practise question allowing the participant to explore the user interface by selecting an item. The participant was given three practise questions of increasing complexity - this is the third and last of them.

This resource can be downloaded or viewed using the link: mat_pract.png

If you have wget available (typically on linux systems), then you can also obtain a copy using the command

 wget  -nd  biobank.ctsu.ox.ac.uk/ukb/ukb/images/mat_pract.png