At many schools, the programs can contribute substantial revenue.
In the email to the executive Guthrie said Rudder had contributed substantial value to every organisation he had worked for.
Irwin and Joan Jacobs are significant philanthrophists in the San Diego area and have contributed substantial amounts to schools and museums.
A majority of Internet broadcasts have yet to contribute substantial revenue to the parent stations, broadcasters say.
Her vision has apparently helped persuade some important public and private sponsors to contribute substantial sums to the festival.
Vincent has contributed substantial time annually to environmental economics capacity-building initiatives in developing countries since 1993.
BDH contributed substantial editing of the manuscript.
"Wild bees are contributing a substantial and significant fraction of the pollination services that we require," Brown said.
Despite the 50-50 ownership, AT&T would contribute $2 billion worth of assets to the new venture, while British Telecom would contribute assets worth only $1.4 billion.
In the 2009 edition, the marathon contributed $150 million worth of activity.
As such we rarely contribute anything substantial to knowledge.
