code: @Override
      public boolean isPrecomputed(InferenceType inferenceType) {
          if (inferenceType.equals(InferenceType.CLASS_HIERARCHY)) {
              return reasoner.isClassified();
          } else {
              return false;
          }
      }
docs: Determines if a specific set of inferences have been precomputed.
  @param inferenceType The type of inference to check for.
  @return <code>true</code> if the specified type of inferences have been
  precomputed, otherwise <code>false</code>.