@RELATION test9 @ATTRIBUTE attr_date_number RELATIONAL @ATTRIBUTE attr_date DATE "yyyy-MM-dd" @ATTRIBUTE attr_number INTEGER @END attr_date_number @DATA "1999-01-31 1\n1935-11-27 10" "2004-12-01 2\n1942-08-13 20" "1817-04-28 3" "2100-09-10 4\n1957-04-17 40\n1721-01-14 400" "2013-11-30 5" "1631-10-15 6"