anchor.diff:    <tr>
       <td> <i>S. pombe</i></td>
       <td> GO annotations </td>
  -    <td> <a href="http://www.geneontology.org" target="_new">Gene Ontology Site</a> - 24th February 2008</td>
  +    <td> <a href="http://www.geneontology.org" target="_new">Gene Ontology Site</a> - 5th May 2008</td>
       <td> Gene Ontology Consortium - <a href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Abstract&list_uids= 10802651" target="_new">PubMed:10802651</a></td>
       <td> &nbsp;</td>
     </tr>
  
positive.code:   <tr>
      <td> <i>S. cerevisiae</i> </td>
      <td> Gene versus publications</td>
      <td> <a href="http://www.ncbi.nlm.nih.gov" target="_new">NCBI</a> - 7th March 2008</td>
      <td> &nbsp;</td>
      <td> &nbsp;</td>
    </tr>
  
negative.code:   <tr>
      <td> <i>M. musculus</i></td>
      <td> GO annotations </td>
      <td> <a href="http://www.geneontology.org" target="_new">Gene Ontology Site</a> - 5th May 2008</td>
      <td> Gene Ontology Consortium - <a href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Abstract&list_uids= 10802651" target="_new">PubMed:10802651</a></td>
      <td> &nbsp;</td>
    </tr>
  