so thank you to the exporatorium director, dennis martels to your wonderful board and leadership. lieutenant governor newsom and the port and commissioners and president david chiu and the entire board of supervisors and the elected officials for being part of this extraordinary effort. and thank you for making this a dream, making this dream a reality for children and adults in our city and around the world. and before i lay my part of the ring on this bell, i will proclaim this to be april 17, 2013, exporatorium day in san francisco. all right. and with that, my contribution on the ring is the third ring, which is called the catalyst ring. and it represents the contributions of civic leadership and public agencies working altogether to make this dream a reality. another hand for mayor ed lee, please? >> our next speaker was mayor of this great city from 2003, to 2011 and his support was crucial to its success. and he is also a proud native san franciscoan who grew up with the appreciation for the exporatorium and the role of education in our civic life. >> i would like to introd