write the following clearer: 
Thanks for adding the proposed contour; it clarifies my first comment about the extent of the retaining wall. However, the second comment still stands as consideration will have to be given to the drainage to the south as we have already received complaints from a property within this subdivision about grading and drainage.  I understand the attempt of having a flatter backyard, but I will not be able to approve these grades without a drainage plan for the grades toward neighboring property  
 Write your response with exactly 3 paragraphs, separated with the markdown divider: ***.
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