<key name="objects">ground_2/xoa</key>
<key name="notations">ground_2/notation/xoa</key>
<key name="include">basics/pts.ma</key>
- <key name="ex">2 4</key>
+ <key name="ex">1 4</key>
<key name="ex">5 1</key>
<key name="ex">5 7</key>
<key name="ex">9 3</key>