Task: Error-Detect (source dataset: Relational-Tables)

Task: 
You are given a column of data from a table. Your job is to examine each value in the column, and identify if there is any clear data error in the column. An data error in the context of the column, can be values that are misspelled (typos), values that are formatted incorrectly, or values that are semantically incompatible with the rest of the column, etc., such that we can determine without ambiguity that such values are errors in the column. 

Since real-world data can vary widely in meaning and format, if you are uncertain whether a value is an error, please do not mark it as one. Only flag a value if you are confident that it is clearly a data error.

No explanation and return the final answer as a JSON object, {"obvious_error": "<CELL>"}. If you detect no error in the data, return {"obvious_error": null}.

Column:
| birthdate               |
|:------------------------|
| 2015-09-20 00:00:00.000 |
| 1965-04-29 00:00:00.000 |
| 2005-08-29 00:00:00.000 |
| 2008-06-11 00:00:00.000 |
| 1959-12-13 00:00:00.000 |
| 1955-11-18 00:00:00.000 |
| 1985-01-27 00:00:00.000 |
| 1954-09-22 00:00:00.000 |
| 1982-11-04 00:00:00.000 |
| 2014-12-08 00:00:00.000 |
| 1998-05-09 00:00:00.000 |
| 1991-03-08 00:00:00.000 |
| 1998-11-09 00:00:00.000 |
| 2012-06-16 00:00:00.000 |
| 1961-07-30 00:00:00.000 |
| 1993-04-30 00:00:00.000 |
| 2008-03-17 00:00:00.000 |
| 1974-11-02 00:00:00.000 |
| 1996-03-12 00:00:00.000 |
| 2007-12-17 00:00:00.000 |
| 2010-11-03 00:00:00.000 |
| 1961-10-02 00:00:00.000 |
| 1985-12-11 00:00:00.000 |
| 1967-03-19 00:00:00.000 |
| 1966-11-29 00:00:00.000 |
| 1978-07-25 00:00:00.000 |
| 1978-04-10 00:00:00.000 |
| 1994-01-15 00:00:00.000 |
| 1952-04-30 00:00:00.000 |
| 1985-01-21 00:00:00.000 |
| 1965-09-15 00:00:00.000 |
| 2004-04-06 00:00:00.000 |
| 1973-11-13 00:00:00.000 |
| 1973-06-21 00:00:00.000 |
| 1959-12-23 00:00:00.000 |
| 2008-03-25 00:00:00.000 |
| 1995-06-03 00:00:00.000 |
| 1957-03-21 00:00:00.000 |
| 2008-03-11 00:00:00.000 |
| 1945-06-03 00:00:00.000 |
| 2000-07-02 00:00:00.000 |
| 1955-05-27 00:00:00.000 |
| 1980-07-24 00:00:00.000 |
| 2002-05-17 00:00:00.000 |
| 1948-06-25 00:00:00.000 |
| 1959-01-11 00:00:00.000 |
| 1988-01-10 00:00:00.000 |
| 1951-07-27 00:00:00.000 |
| 2014-10-30 00:00:00.000 |
| 1953-09-27 00:00:00.000 |
| 1988-05-04 00:00:00.000 |
| 1968-04-07 00:00:00.000 |
| 1949-03-28 00:00:00.000 |
| 2002-05-14 00:00:00.000 |
| 1961-08-26 00:00:00.000 |
| 1992-10-22 00:00:00.000 |
| 1974-04-25 00:00:00.000 |
| 1985-06-26 00:00:00.000 |
| 2010-03-17 00:00:00.000 |
| 1960-05-27 00:00:00.000 |
| 1978-01-08 00:00:00.000 |
| 1954-10-19 00:00:00.000 |
| 1977-03-13 00:00:00.000 |
| 1966-01-22 00:00:00.000 |
| 1997-01-19 00:00:00.000 |
| 1953-10-23 00:00:00.000 |
| 1966-01-15 00:00:00.000 |
| 1954-11-07 00:00:00.000 |
| 1947-12-23 00:00:00.000 |
| 1992-04-05 00:00:00.000 |
| 1990-02-01 00:00:00.000 |
| 1993-12-19 00:00:00.000 |
| 1976-05-16 00:00:00.000 |
| 1966-01-19 00:00:00.000 |
| 1997-06-14 00:00:00.000 |
| 1966-05-17 00:00:00.000 |
| 1987-05-24 00:00:00.000 |
| 1999-12-11 00:00:00.000 |
| 1999-05-17 00:00:00.000 |
| 1962-07-17 00:00:00.000 |
| 1967-10-03 00:00:00.000 |
| 1974-05-29 00:00:00.000 |
| 1987-07-19 00:00:00.000 |
| 1987-06-23 00:00:00.000 |
| 1988-06-09 00:00:00.000 |
| 1985-03-05 00:00:00.000 |
| 1966-09-30 00:00:00.000 |
| 1993-09-23 00:00:00.000 |
| 1994-07-24 00:00:00.000 |
| 2009-07-29 00:00:00.000 |
| 1977-11-28 00:00:00.000 |
| 2008-10-24 00:00:00.000 |
| 1982-09-14 00:00:00.000 |
| 1985-02-19 00:00:00.000 |
| 1957-11-25 00:00:00.000 |
| 1975-04-03 00:00:00.000 |
| 1995-09-19 00:00:00.000 |
| 2010-06-27 00:00:00.000 |
| 1985-02-21 00:00:00.000 |
| 2008-07-19 00:00:00.000 |
| 2015-01-08 00:00:00.000 |
| 1948-06-05 00:00:00.000 |
| 1982-11-10 00:00:00.000 |
| 1948-03-12 00:00:00.000 |
| 1949-05-21 00:00:00.000 |
| 1950-02-12 00:00:00.000 |
| 1962-05-23 00:00:00.000 |
| 1968-11-25 00:00:00.000 |
| 1988-03-16 00:00:00.000 |
| 1978-05-09 00:00:00.000 |
| 1974-09-13 00:00:00.000 |
| 1981-07-04 00:00:00.000 |
| 2013-09-17 00:00:00.000 |
| 1995-10-07 00:00:00.000 |
| 1958-10-26 00:00:00.000 |
| 1987-03-12 00:00:00.000 |
| 1997-10-08 00:00:00.000 |
| 2010-02-19 00:00:00.000 |
| 1977-07-20 00:00:00.000 |
| 1947-06-01 00:00:00.000 |
| 1962-01-20 00:00:00.000 |
| 1981-11-12 00:00:00.000 |
| 1988-01-06 00:00:00.000 |
| 2008-06-16 00:00:00.000 |
| 1973-06-03 00:00:00.000 |
| 1970-07-24 00:00:00.000 |
| 1956-10-30 00:00:00.000 |
| 1952-03-17 00:00:00.000 |
| 1948-04-21 00:00:00.000 |
| 1984-07-01 00:00:00.000 |
| 1991-01-05 00:00:00.000 |
| 2015-09-21 00:00:00.000 |
| 1950-07-29 00:00:00.000 |
| 1989-05-05 00:00:00.000 |
| 1964-01-22 00:00:00.000 |
| 1957-11-26 00:00:00.000 |
| 1996-11-04 00:00:00.000 |
| 2006-10-23 00:00:00.000 |
| 1995-07-18 00:00:00.000 |
| 1996-07-18 00:00:00.000 |
| 1969-12-08 00:00:00.000 |
| 1961-09-20 00:00:00.000 |
| 1996-09-16 00:00:00.000 |
| 1967-06-28 00:00:00.000 |
| 1957-12-15 00:00:00.000 |
| 1954-04-08 00:00:00.000 |
| 1997-06-12 00:00:00.000 |
| 1956-10-25 00:00:00.000 |
| 1989-12-31 00:00:00.000 |
| 1987-06-07 00:00:00.000 |
| 1947-01-30 00:00:00.000 |
| 1991-11-14 00:00:00.000 |
| 1973-11-24 00:00:00.000 |
| 1946-07-23 00:00:00.000 |
| 1967-07-20 00:00:00.000 |
| 1955-05-10 00:00:00.000 |
| 1977-05-21 00:00:00.000 |
| 1951-01-30 00:00:00.000 |
| 2006-11-07 00:00:00.000 |
| 1985-04-08 00:00:00.000 |
| 1981-10-19 00:00:00.000 |
| 2004-12-21 00:00:00.000 |
| 1981-01-06 00:00:00.000 |
| 2009-06-13 00:00:00.000 |
| 1949-02-22 00:00:00.000 |
| 2013-02-25 00:00:00.000 |
| 1986-01-16 00:00:00.000 |
| 1956-04-21 00:00:00.000 |
| 1972-01-03 00:00:00.000 |
| 1973-04-19 00:00:00.000 |
| 1982-12-28 00:00:00.000 |
| 1994-02-24 00:00:00.000 |
| 1992-03-01 00:00:00.000 |
| 1993-03-09 00:00:00.000 |
| 1968-02-11 00:00:00.000 |
| 1989-06-22 00:00:00.000 |
| 1974-07-16 00:00:00.000 |
| 1969-12-04 00:00:00.000 |
| 1984-07-25 00:00:00.000 |
| 1983-06-12 00:00:00.000 |
| 1970-11-08 00:00:00.000 |
| 1953-05-09 00:00:00.000 |
| 2006-02-13 00:00:00.000 |
| 1985-09-01 00:00:00.000 |
| 1996-06-21 00:00:00.000 |
| 1990-05-17 00:00:00.000 |
| 2014-12-17 00:00:00.000 |
| 1950-03-24 00:00:00.000 |
| 1972-07-15 00:00:00.000 |
| 1960-12-29 00:00:00.000 |
| 1991-10-12 00:00:00.000 |
| 1994-06-07 00:00:00.000 |
| 1984-10-14 00:00:00.000 |
| 2007-05-04 00:00:00.000 |
| 1977-09-07 00:00:00.000 |
| 1981-09-13 00:00:00.000 |
| 2003-05-12 00:00:00.000 |
| 1988-06-08 00:00:00.000 |
| 1949-04-13 00:00:00.000 |
| 1980-11-19 00:00:00.000 |
| 2001-02-14 00:00:00.000 |
| 1999-01-25 00:00:00.000 |
| 1970-12-17 00:00:00.000 |
| 1971-10-13 00:00:00.000 |
| 1954-06-09 00:00:00.000 |
| 1976-11-17 00:00:00.000 |
| 1997-01-28 00:00:00.000 |
| 1989-03-01 00:00:00.000 |
| 1974-11-17 00:00:00.000 |
| 1988-08-26 00:00:00.000 |
| 1965-04-20 00:00:00.000 |
| 1979-06-04 00:00:00.000 |
| 1993-06-19 00:00:00.000 |
| 2012-08-09 00:00:00.000 |
| 1971-08-11 00:00:00.000 |
| 2013-02-09 00:00:00.000 |
| 1995-08-05 00:00:00.000 |
| 1982-02-16 00:00:00.000 |
| 1979-11-05 00:00:00.000 |
| 1993-04-21 00:00:00.000 |
| 2001-10-31 00:00:00.000 |
| 1967-07-18 00:00:00.000 |
| 2014-07-19 00:00:00.000 |
| 1954-08-31 00:00:00.000 |
| 2013-10-27 00:00:00.000 |
| 1989-06-12 00:00:00.000 |
| 2003-01-05 00:00:00.000 |
| 1963-12-07 00:00:00.000 |
| 2006-04-11 00:00:00.000 |
| 1989-08-06 00:00:00.000 |
| 2004-10-05 00:00:00.000 |
| 1960-06-30 00:00:00.000 |
| 1952-03-14 00:00:00.000 |
| 1983-08-22 00:00:00.000 |
| 1977-11-12 00:00:00.000 |
| 1951-01-12 00:00:00.000 |
| 1959-12-08 00:00:00.000 |
| 1981-06-25 00:00:00.000 |
| 1981-07-25 00:00:00.000 |
| 2010-01-12 00:00:00.000 |
| 2001-11-25 00:00:00.000 |
| 2011-02-25 00:00:00.000 |
| 1995-05-30 00:00:00.000 |
| 2002-08-21 00:00:00.000 |
| 1956-09-01 00:00:00.000 |
| 2010-04-24 00:00:00.000 |
| 1986-07-08 00:00:00.000 |
| 1975-02-03 00:00:00.000 |
| 1974-10-04 00:00:00.000 |
| 1959-10-09 00:00:00.000 |
| 1951-07-17 00:00:00.000 |
| 1984-09-20 00:00:00.000 |
| 1950-04-12 00:00:00.000 |
| 1991-01-04 00:00:00.000 |
| 2011-10-01 00:00:00.000 |
| 1969-10-29 00:00:00.000 |
| 1980-04-02 00:00:00.000 |
| 1955-03-14 00:00:00.000 |
| 1978-03-23 00:00:00.000 |
| 1969-02-09 00:00:00.000 |
| 1998-01-05 00:00:00.000 |
| 1985-01-15 00:00:00.000 |
| 1998-09-07 00:00:00.000 |
| 1948-12-03 00:00:00.000 |
| 2015-04-26 00:00:00.000 |
| 1999-09-01 00:00:00.000 |
| 1960-07-25 00:00:00.000 |
| 1951-05-25 00:00:00.000 |
| 1962-04-26 00:00:00.000 |
| 1980-07-07 00:00:00.000 |
| 1954-04-01 00:00:00.000 |
| 1997-04-13 00:00:00.000 |
| 1976-07-18 00:00:00.000 |
| 1996-10-14 00:00:00.000 |
| 1966-10-18 00:00:00.000 |
| 1990-02-20 00:00:00.000 |
| 1954-01-27 00:00:00.000 |
| 1968-12-01 00:00:00.000 |
| 1991-01-31 00:00:00.000 |
| 1955-07-07 00:00:00.000 |
| 1991-05-17 00:00:00.000 |
| 1974-02-26 00:00:00.000 |
| 2007-09-08 00:00:00.000 |
| 2013-03-09 00:00:00.000 |
| 1990-08-17 00:00:00.000 |
| 1999-05-18 00:00:00.000 |
| 2006-06-05 00:00:00.000 |
| 1986-12-16 00:00:00.000 |
| 1973-07-10 00:00:00.000 |
| 1990-09-27 00:00:00.000 |
| 1985-05-14 00:00:00.000 |
| 1965-09-28 00:00:00.000 |
| 2009-06-04 00:00:00.000 |
| 1974-01-18 00:00:00.000 |
| 2005-09-02 00:00:00.000 |
| 1980-09-08 00:00:00.000 |
| 2015-10-01 00:00:00.000 |
| 1993-04-11 00:00:00.000 |
| 1991-08-04 00:00:00.000 |
| 1953-09-01 00:00:00.000 |
| 2002-02-23 00:00:00.000 |
| 1976-10-09 00:00:00.000 |
| 1987-05-31 00:00:00.000 |
| 1968-10-28 00:00:00.000 |
| 1972-04-04 00:00:00.000 |
| 2007-12-28 00:00:00.000 |
| 1991-06-20 00:00:00.000 |
| 1966-12-15 00:00:00.000 |
| 1998-08-20 00:00:00.000 |
| 1966-03-11 00:00:00.000 |
| 1945-01-21 00:00:00.000 |
| 1971-06-20 00:00:00.000 |
| 1994-01-24 00:00:00.000 |
| 1960-10-21 00:00:00.000 |
| 1989-10-12 00:00:00.000 |
| 1947-09-13 00:00:00.000 |
| 1968-11-24 00:00:00.000 |
| 2001-11-30 00:00:00.000 |
| 1978-10-01 00:00:00.000 |
| 2002-12-17 00:00:00.000 |
| 1971-09-11 00:00:00.000 |
| 1985-09-22 00:00:00.000 |
| 1958-03-26 00:00:00.000 |
| 1985-06-05 00:00:00.000 |
| 1979-03-29 00:00:00.000 |
| 1947-10-02 00:00:00.000 |
| 2002-08-28 00:00:00.000 |
| 1978-04-06 00:00:00.000 |
| 2013-09-15 00:00:00.000 |
| 1970-02-25 00:00:00.000 |
| 1978-08-12 00:00:00.000 |
| 1992-08-17 00:00:00.000 |
| 1990-07-10 00:00:00.000 |
| 1972-05-18 00:00:00.000 |
| 2015-12-03 00:00:00.000 |
| 2000-04-03 00:00:00.000 |
| 1977-11-17 00:00:00.000 |
| 1961-03-22 00:00:00.000 |
| 1958-08-08 00:00:00.000 |
| 1976-06-04 00:00:00.000 |
| 1982-01-13 00:00:00.000 |
| 2000-04-05 00:00:00.000 |
| 1951-01-15 00:00:00.000 |
| 1977-10-21 00:00:00.000 |
| 2004-11-03 00:00:00.000 |
| 2013-02-14 00:00:00.000 |
| 2014-09-07 00:00:00.000 |
| 1949-09-10 00:00:00.000 |
| 1986-01-18 00:00:00.000 |
| 1992-08-29 00:00:00.000 |
| 1997-07-19 00:00:00.000 |
| 1995-04-05 00:00:00.000 |
| 1958-01-17 00:00:00.000 |
| 1958-06-01 00:00:00.000 |
| 1997-05-17 00:00:00.000 |
| 1989-08-01 00:00:00.000 |
| 2009-04-03 00:00:00.000 |
| 2011-05-15 00:00:00.000 |
| 1992-10-31 00:00:00.000 |
| 2003-11-13 00:00:00.000 |
| 1985-03-20 00:00:00.000 |
| 2008-03-29 00:00:00.000 |
| 1992-12-13 00:00:00.000 |
| 2010-04-09 00:00:00.000 |
| 1952-05-01 00:00:00.000 |
| 1981-06-28 00:00:00.000 |
| 1961-11-10 00:00:00.000 |
| 1945-06-30 00:00:00.000 |
| 1990-01-08 00:00:00.000 |
| 1981-07-22 00:00:00.000 |
| 1985-03-17 00:00:00.000 |
| 1947-07-02 00:00:00.000 |
| 1998-11-01 00:00:00.000 |
| 1952-10-15 00:00:00.000 |
| 1984-09-05 00:00:00.000 |
| 2010-07-09 00:00:00.000 |
| 2014-05-12 00:00:00.000 |
| 1999-05-05 00:00:00.000 |
| 2002-12-30 00:00:00.000 |
| 1981-05-13 00:00:00.000 |
| 2008-04-02 00:00:00.000 |
| 1957-07-16 00:00:00.000 |
| 2015-11-13 00:00:00.000 |
| 1998-09-18 00:00:00.000 |
| 1947-02-12 00:00:00.000 |
| 1945-07-10 00:00:00.000 |
| 1970-05-30 00:00:00.000 |
| 1968-10-06 00:00:00.000 |
| 1968-10-01 00:00:00.000 |
| 1993-10-14 00:00:00.000 |
| 2007-03-23 00:00:00.000 |
| 1974-11-03 00:00:00.000 |
| 1950-04-11 00:00:00.000 |
| 1950-08-06 00:00:00.000 |
| 1973-03-28 00:00:00.000 |
| 2013-09-27 00:00:00.000 |
| 1986-11-16 00:00:00.000 |
| 2015-05-09 00:00:00.000 |
| 1990-08-11 00:00:00.000 |
| 1972-07-22 00:00:00.000 |
| 1958-06-21 00:00:00.000 |
| 1952-11-23 00:00:00.000 |
| 1987-09-28 00:00:00.000 |
| 1972-05-13 00:00:00.000 |
| 2010-02-13 00:00:00.000 |
| 1947-11-14 00:00:00.000 |
| 1993-05-23 00:00:00.000 |
| 1947-07-11 00:00:00.000 |
| 1969-05-03 00:00:00.000 |
| 2015-04-13 00:00:00.000 |
| 2014-11-13 00:00:00.000 |
| 1951-02-10 00:00:00.000 |
| 1968-08-04 00:00:00.000 |
| 1946-05-13 00:00:00.000 |
| 2005-04-29 00:00:00.000 |
| 1982-03-13 00:00:00.000 |
| 2008-10-27 00:00:00.000 |
| 1948-09-29 00:00:00.000 |
| 1984-02-19 00:00:00.000 |
| 1949-06-15 00:00:00.000 |
| 2013-11-29 00:00:00.000 |
| 1998-04-25 00:00:00.000 |
| 2003-05-10 00:00:00.000 |
| 1991-05-24 00:00:00.000 |
| 1958-10-07 00:00:00.000 |
| 1998-01-25 00:00:00.000 |
| 1945-03-31 00:00:00.000 |
| 1996-03-08 00:00:00.000 |
| 1957-12-23 00:00:00.000 |
| 1988-05-22 00:00:00.000 |
| 2002-07-06 00:00:00.000 |
| 2008-09-01 00:00:00.000 |
| 1951-07-18 00:00:00.000 |
| 2008-11-15 00:00:00.000 |
| 1996-09-02 00:00:00.000 |
| 2015-10-19 00:00:00.000 |
| 1963-09-25 00:00:00.000 |
| 1981-11-02 00:00:00.000 |
| 1953-06-02 00:00:00.000 |
| 1988-05-05 00:00:00.000 |
| 1992-04-20 00:00:00.000 |
| 1990-02-18 00:00:00.000 |
| 1957-09-23 00:00:00.000 |
| 1976-06-11 00:00:00.000 |
| 1958-05-08 00:00:00.000 |
| 1967-09-20 00:00:00.000 |
| 1983-08-04 00:00:00.000 |
| 2001-01-31 00:00:00.000 |
| 1955-07-31 00:00:00.000 |
| 1948-09-21 00:00:00.000 |
| 1970-08-05 00:00:00.000 |
| 2015-06-09 00:00:00.000 |
| 1992-06-10 00:00:00.000 |
| 1993-03-26 00:00:00.000 |
| 1968-06-08 00:00:00.000 |
| 2010-12-26 00:00:00.000 |
| 1945-02-16 00:00:00.000 |
| 1984-01-24 00:00:00.000 |
| 1994-11-14 00:00:00.000 |
| 1980-04-27 00:00:00.000 |
| 1969-01-05 00:00:00.000 |
| 1949-07-09 00:00:00.000 |
| 1989-12-10 00:00:00.000 |
| 1964-02-06 00:00:00.000 |
| 1976-12-20 00:00:00.000 |
| 1962-09-05 00:00:00.000 |
| 1973-10-07 00:00:00.000 |
| 1945-07-17 00:00:00.000 |
| 1952-09-22 00:00:00.000 |
| 1996-07-25 00:00:00.000 |
| 1993-06-25 00:00:00.000 |
| 1984-06-26 00:00:00.000 |
| 1981-10-31 00:00:00.000 |
| 1970-03-23 00:00:00.000 |
| 2000-11-03 00:00:00.000 |
| 1969-03-21 00:00:00.000 |
| 1981-05-07 00:00:00.000 |
| 1964-11-27 00:00:00.000 |
| 2012-01-20 00:00:00.000 |
| 2011-12-22 00:00:00.000 |
| 1976-04-28 00:00:00.000 |
| 1988-07-27 00:00:00.000 |
| 1993-03-01 00:00:00.000 |
| 1992-05-15 00:00:00.000 |
| 2004-07-14 00:00:00.000 |
| 1997-10-02 00:00:00.000 |
| 1955-01-06 00:00:00.000 |
| 1965-06-26 00:00:00.000 |
| 1960-06-19 00:00:00.000 |
| 1985-01-07 00:00:00.000 |