You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <logevents lestart="2020-09-11T04:59:50Z" />
  </query-continue>
  <query>
    <logevents>
      <item logid="1527" pageid="0" ns="0" title="バニッシング加工" type="delete" action="delete" user="事務局" timestamp="2021-04-13T06:27:33Z" comment="内容:「&#039;&#039;&#039;バニシング加工&#039;&#039;&#039;(Burnishing)とは，切削加工された粗い面を持つ工作物に対し，高硬度材でできた円筒あるいは半球形状の工具を押し付け，押しならすことで滑らかな仕上げ面...」" />
      <item logid="1526" pageid="341" ns="0" title="バニシング加工" type="patrol" action="patrol" user="事務局" timestamp="2021-04-13T06:26:35Z" comment="">
        <patrol cur="2056" prev="0" auto="1" />
      </item>
      <item logid="1525" pageid="5" ns="3000" title="private:用語作成候補" type="patrol" action="patrol" user="事務局" timestamp="2021-04-13T06:24:22Z" comment="">
        <patrol cur="2055" prev="2042" auto="1" />
      </item>
      <item logid="1524" pageid="339" ns="0" title="3次元内部構造顕微鏡" type="patrol" action="patrol" user="JSPEeditor" timestamp="2020-09-11T05:35:27Z" comment="">
        <patrol cur="2054" prev="2053" auto="1" />
      </item>
      <item logid="1523" pageid="339" ns="0" title="3次元内部構造顕微鏡" type="patrol" action="patrol" user="JSPEeditor" timestamp="2020-09-11T05:24:37Z" comment="">
        <patrol cur="2053" prev="2052" auto="1" />
      </item>
      <item logid="1522" pageid="339" ns="0" title="3次元内部構造顕微鏡" type="patrol" action="patrol" user="JSPEeditor" timestamp="2020-09-11T05:23:52Z" comment="">
        <patrol cur="2052" prev="2050" auto="1" />
      </item>
      <item logid="1521" pageid="340" ns="6" title="ファイル:ThreeDInterStructMicroscope.jpeg" type="upload" action="upload" user="JSPEeditor" timestamp="2020-09-11T05:22:00Z" comment="" />
      <item logid="1520" pageid="339" ns="0" title="3次元内部構造顕微鏡" type="patrol" action="patrol" user="JSPEeditor" timestamp="2020-09-11T05:18:38Z" comment="">
        <patrol cur="2050" prev="2049" auto="1" />
      </item>
      <item logid="1519" pageid="339" ns="0" title="3次元内部構造顕微鏡" type="patrol" action="patrol" user="JSPEeditor" timestamp="2020-09-11T05:11:52Z" comment="">
        <patrol cur="2049" prev="2048" auto="1" />
      </item>
      <item logid="1518" pageid="339" ns="0" title="3次元内部構造顕微鏡" type="patrol" action="patrol" user="JSPEeditor" timestamp="2020-09-11T05:07:17Z" comment="">
        <patrol cur="2048" prev="2047" auto="1" />
      </item>
    </logevents>
  </query>
</api>