CREATE TABLE table_204_698 (id DECIMAL, "name" TEXT, "lifetime" TEXT, "nationality" TEXT, "notable as" TEXT, "notes" TEXT)

how old was pierre vallieres before he died ?
SELECT "lifetime" - "lifetime" FROM table_204_698 WHERE "name" = 'pierre vallieres'
SELECT "lifetime" - "lifetime" FROM "table_204_698" WHERE "name" = 'pierre vallieres'