Boston, MA., 04/29/13, John Hancock Financial officially dedicated Frieda Garcia Park, cq, a 1200 square foot green space and playground in the South End named for long time South End community leader Frieda Garcia. Students from the Inguilinos Boricuas en Accion school, Kevin Mercedes, left, and Hassan Duverge, both cq., sang during the ceremony. Section ; Metro. Suzanne Kreiter/Globe staff