Exhibit 99.1

                            Explanation of Responses


(1)  The shares to which this note relates correspond to a gift made to Roads To
     Success, a new career, college and life skills readiness program for
     students in grades 7-12.

(2)  The shares to which this note relates correspond to a gift made to Tides
     Foundation, a public charity which partners with donors to increase and
     organize resources for positive social change.

(3)  The shares to which this note relates correspond to a gift made to Emory
     University.

(4)  The shares to which this note relates includes 4,762,000 shares of Class B
     Common Stock which are convertible on a share for share basis into Common
     Stock. Each share of Class B Common Stock has ten votes per share.

(5)  The shares to which this note relates are held directly by the Reporting
     Person's spouse. The Reporting Person disclaims beneficial ownership of the
     shares owned by his spouse.

(6)  The shares to which this note relates are held directly by the Reporting
     Person's personal 401(k) plan.