$ go run xml.go
 <plant id="27">
   <name>Coffee</name>
   <origin>Ethiopia</origin>
   <origin>Brazil</origin>
 </plant>
<?xml version="1.0" encoding="UTF-8"?>
 <plant id="27">
   <name>Coffee</name>
   <origin>Ethiopia</origin>
   <origin>Brazil</origin>
 </plant>
Plant id=27, name=Coffee, origin=[Ethiopia Brazil]
 <nesting>
   <parent>
     <child>
       <plant id="27">
         <name>Coffee</name>
         <origin>Ethiopia</origin>
         <origin>Brazil</origin>
       </plant>
       <plant id="81">
         <name>Tomato</name>
         <origin>Mexico</origin>
         <origin>California</origin>
       </plant>
     </child>
   </parent>
 </nesting>