Simplify the following text for a Grade 7 native English-speaking person.
Original: In that transaction , the entire 150 a site was purchased from its previous owner , First Gardens , L.C. , by The Trust for Public Land , a national conservation organization .
Simplified: In that agreement , the entire 150 a site was bought from its previous owner , First Gardens , L.C. , by The Trust for Public Land , a nation wide conservation group .