user: Question: who is the grand finalist when the grand finalists are Jonathan Loh, Peterson Poon, Nathan Santos?
Columns: ['Year', 'Champion', 'Grand Finalist', 'Champion Team Members', 'Grand Finalists']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [2003.0, 'Immaculate Conception Academy-Greenhills A', 'Claret School of Quezon City A', 'Charisse Borromeo, Jennifer Ong, Larissa Co', 'Wendell Batocabe, Dino de Leon, Paul Anido']
SQL:

assistant: SELECT "Grand Finalist" FROM "Table" WHERE "Grand Finalists" = 'Jonathan Loh, Peterson Poon, Nathan Santos';