<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>myth_drannon</author><text>Mandatory mention of Kenyan Wangari Maathai  &lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;en.wikipedia.org&amp;#x2F;wiki&amp;#x2F;Wangari_Maathai&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;en.wikipedia.org&amp;#x2F;wiki&amp;#x2F;Wangari_Maathai&lt;/a&gt;
She started a grassroots movement of planting millions of trees in Kenya.
She received Nobel prize in 2004 for her environmental work in Africa.</text><parent_chain></parent_chain></comment><story><title>Farmers in Niger are nurturing gao trees to drive environmental change in Africa</title><url>https://www.theguardian.com/world/2018/aug/16/regreening-niger-how-magical-gaos-transformed-land</url></story>
<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>vezycash</author><text>On topic: Researching Gao trees, I learned about Fertilizer Trees.&lt;p&gt;&lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;en.m.wikipedia.org&amp;#x2F;wiki&amp;#x2F;Fertilizer_tree&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;en.m.wikipedia.org&amp;#x2F;wiki&amp;#x2F;Fertilizer_tree&lt;/a&gt;&lt;p&gt;Question: 
Does nitrogen fixing remove the need for adding other soil macro nutrients?</text><parent_chain></parent_chain></comment><story><title>Farmers in Niger are nurturing gao trees to drive environmental change in Africa</title><url>https://www.theguardian.com/world/2018/aug/16/regreening-niger-how-magical-gaos-transformed-land</url></story>