who is the writer with notable works like twenty thousand leagues under the sea and journey to the center of the earth ?
SELECT DISTINCT var_uri where brack_open var_uri dbo_notableWork dbr_Twenty_Thousand_Leagues_Under_the_Sea sep_dot var_uri dbo_notableWork dbr_Journey_to_the_Center_of_the_Earth sep_dot var_uri a dbo_Writer brack_close