We welcome you as a new mapper.
Thanks for your contribution to this project.
This changeset is reviewed by a Global Validator to check that the tasks have been mapped in accordance with the quality standards of HOTOSM. 
We cannot expect from a new mapper that he/she delivers high-quality mappings from the start, so we offer some guidance.
Please pay attention to the next summarized issues. (see attached document with examples for more info)
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I have the idea that you are not good informed what objects are to be recognized and mapped as buildings. 
You consequently mapped Yards with walls/fences as a building. 
Buildings here have mostly a bluegreen roof, rather white. In all cases you must see a shadow next to it. (it proofs it is above groundlevel) 
When you see shadows on both walls, No building.  
perhaps a building under construction or cattle stock room.

Explanation can be found in this document what  might be helpful to strengthen your mapping skills
https://docs.google.com/document/d/1Swwz-ZwM3_YOstqstsmCg1-lNAPbnMLpi1Al-h-2UOQ/edit


Best regards and keep mapping!
Frans S