Isabella Baez-Giangreco, a 10-year-old JP resident who goes to the Manning School, took third place in the Boston Center for Youth and Families City-wide Spelling Bee on Saturday. She was the youngest of the top three finishers, as two spellers from West Roxbury — 13-year-old Christy Jeston and 12-year-old Emily Sun — took first and second place respectively. Jeston's winning word was "schottische." He told the Herald his study of word origins paid off. "I was pretty confident, actually," Jeston told the Herald.