<http://schema.org/description>
"Washington,  Oct 5 (ANI): A natural variation shows promise  for increasing  provitamin  A in cassava roots  using  transgenic  or conventional methods."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.oneindia.com/2010/10/05/transgeniccassava-roots-could-address-vitamin-adeficiency.html>