CREATE TABLE table_28559 ("Film Festival" CLOB, "Date of ceremony" CLOB, "Category" CLOB, "Participants/Recipients" CLOB, "Result" CLOB)

What date was the participant/recipient takakazu watanabe?
SELECT "Date of ceremony" FROM table_28559 WHERE "Participants/Recipients" = 'Takakazu Watanabe'
SELECT "Date of ceremony" FROM "table_28559" WHERE "Participants/Recipients" = 'Takakazu Watanabe'