* @throws IOException if a communications error occurs
   * @throws UnknownHostException if the Cyc server cannot be found
   * @throws CycApiException if the Cyc server returns an error
   */
  public void unassertMtContentsWithoutTranscript(CycObject mt)
          throws UnknownHostException, IOException,
          CycApiException {
    CycList assertions = getAllAssertionsInMt(mt);
    Iterator iter = assertions.iterator();

    while (iter.hasNext()) {
      CycAssertion assertion = (CycAssertion) iter.next();
      String command = makeSubLStmt("cyc-unassert", assertion, makeELMt(mt));
      converseVoid(command);
    }
  }