question: What nationality is Charles Russell Lowell Sr.'s father?
context: [["Charles Russell Lowell", ["Charles Russell Lowell III( January 2, 1835 \u2013 October 20, 1864) was a railroad executive, foundryman, and General in the Union Army during the American Civil War.", "He was mortally wounded at the Battle of Cedar Creek and was mourned by a number of leading generals."]], ["John Lowell", ["John Lowell (June 17, 1743 \u2013 May 6, 1802) was a delegate to the Congress of the Confederation, a Judge of the Court of Appeals in Cases of Capture under the Articles of Confederation, a United States District Judge of the United States District Court for the District of Massachusetts and a United States Circuit Judge of the United States Circuit Court for the First Circuit."]], ["Sir Charles Russell, 1st Baronet", ["Sir Charles Russell, 1st Baronet,( 8 July 1863 \u2013 27 March 1928) was an English solicitor."]], ["Charles R. Train", ["Charles Russell Train( October 18, 1817 \u2013 July 28, 1885) was a U.S. Representative from Massachusetts."]], ["William Lowell Sr.", ["William Lowell Sr.( 1863 \u2013 June 24, 1954) was a dentist and an inventor of a wooden golf tee."]], ["Charles R. Stimpson", ["Charles Russell Stimpson( 24 August 1919 \u2013 20 August 1983) was a United States Navy fighter ace in World War II."]], ["Charles Russell Lowell Sr.", ["Charles Russell Lowell Sr.", "(15 August 1782 in Boston \u2013 20 January 1861 in Cambridge, Massachusetts) was a Unitarian minister and a son of judge John Lowell."]], ["Russell Payne (athlete)", ["Charles Russell Payne( May 14, 1902 \u2013 June 1970) was an American middle- distance runner.", "He competed in the men's 3000 metres steeplechase at the 1924 Summer Olympics."]], ["Charles Russell (1786\u20131856)", ["Charles Russell( 22 July 1786 \u2013 15 May 1856) was a British Conservative and Tory politician."]], ["Charlie Russell (naturalist)", ["Andrew Charles Russell( August 19, 1941 \u2013 May 7, 2018) was a Canadian naturalist known for his study of grizzly bears."]]]
supporting_facts: [["Charles Russell Lowell Sr.", 1], ["John Lowell", 0]]
evidences: [["Charles Russell Lowell Sr.", "father", "John Lowell"], ["John Lowell", "country of citizenship", "United States"]]
answer: United States