CREATE TABLE table_204_776 (id NUMBER, "site" CLOB, "date ( s ) " CLOB, "designated" NUMBER, "location" CLOB, "description" CLOB)

what is the differece in years from date to designated to for gray nuns ' hospital ?
SELECT ABS("date(s)" - "designated") FROM table_204_776 WHERE "site" = "grey nuns' hospital"
SELECT ABS("date(s)" - "designated") FROM "table_204_776" WHERE "grey nuns' hospital" = "site"