Well done! Both of these building footprints are valid the one on the right is quite accurate, but the one on the left has not been squared when it should and is slightly too large. I modified these footprints and uploaded my changes for you to see. Click on a feature and open it in ID editor to see what I've done. Thank you for your contribution!
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            Published using OSMCha: https://osmcha.org/changesets/157914023
            