code: private static boolean isConjWithNoPrep(TreeGraphNode node, Collection<TypedDependency> list) {
      for (TypedDependency td : list) {
        if (td.gov() == node && td.reln() == CONJUNCT) {
          // we have a conjunct
          // check the POS of the dependent
          String tdDepPOS = td.dep().parent().value();
          if (!(tdDepPOS.equals("IN") || tdDepPOS.equals("TO"))) {
            return true;
          }
        }
      }
      return false;
    }
docs: Given a list of typedDependencies, returns true if the node "node" is the
  governor of a conj relation with a dependent which is not a preposition
  
  @param node
  A node in this GrammaticalStructure
  @param list
  A list of typedDependencies
  @return true If node is the governor of a conj relation in the list with
  the dep not being a preposition