wolfram api result

result.xml

<pod title='Result'
     scanner='Identity'
     id='Result'
     position='200'
     error='false'
     numsubpods='1'
     primary='true'>
  <subpod title=''
      primary='true'>
   <plaintext>3.725×10^17 inches</plaintext>
   <img src='http://www4a.wolframalpha.com/Calculate/MSP/MSP15221a0195597422aia000005bi4d4g91aicge71?MSPStoreType=image/gif&amp;s=15'
       alt='3.725×10^17 inches'
       title='3.725×10^17 inches'
       width='125'
       height='18' />
  </subpod>
 </pod>