Package info
<ul>
  <li> separate cluster feature to keep speed since two many features in a function reduce speed drastically. </li>
  <li> try second order stacking features </li>
  <li> parser stacking features </li>
  <li> lots of cluster features </li>
  <li> Iteration over edges and not extraction of all edges each time </li>
  <li> integrated new structurer writer </li>
</ul>
  Change in FS, I observed lots of duplicated grand-children features
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