  In this article, the clarification to Note 4 (arXiv:1202.0941) for n=8 is
considered. In this connection, answers to the following questions are given.
  1. How to classify the metric hypercomplex orthogonal group
alternative-elastic algebras for n=8?
  2. How to associate the metric hypercomplex orthogonal group
alternative-elastic algebra to the symmetric controlling spinor for n=8?
  3. How technically to construct the symmetric controlling spinor for n=8?
  4. What class does the octonion belong to, and how to describe its?
