CREATE TABLE table_name_26 (grand_finalist VARCHAR2, grand_finalists VARCHAR2)

who is the grand finalist when the grand finalists are jonathan loh, peterson poon, nathan santos?
SELECT grand_finalist FROM table_name_26 WHERE grand_finalists = "jonathan loh, peterson poon, nathan santos"
SELECT "grand_finalist" FROM "table_name_26" WHERE "grand_finalists" = "jonathan loh, peterson poon, nathan santos"