user: Question: When was john hoan trinh doan / st. john hoan, who was beatified in 1909 and canonised after 1988, martyred?
Columns: ['Name', 'Martyred', 'Place', 'Beatified', 'Canonised']
Types: ['text', 'real', 'text', 'real', 'real']
Sample row: ['Laurent-Marie-Joseph Imbert / St. Imbert', 1839.0, 'Korea', 1925.0, 1984.0]
SQL:

assistant: SELECT "Martyred" FROM "Table" WHERE "Beatified" = 1909.0 AND "Name" = 'john hoan trinh doan / st. john hoan' AND "Canonised" > 1988.0;