Task change direction from which to stand' value $2000 answer Philosophy round Double Jeopardy! Show_number 3671 category LINES FROM LONGFELLOW air_date 1998-11-23 question 'A document allowing something' value $1000 answer Thomas Edison round Jeopardy! Show_number 3543 category NATIONS OF OPEC air_date 2011-07-21 question 'This legendary duo first started to get a hear- ing, and unconsciously.