user: Question: What is Nationality, when Years is 1979?
Columns: ['Player', 'Nationality', 'Jersey Number(s)', 'Position', 'Years', 'From']
Types: ['text', 'text', 'real', 'text', 'text', 'text']
Sample row: ['Mark Radford Category:Articles with hCards', 'United States', 30.0, 'PG / SG', '1981 – 1983', 'Oregon State']
SQL:

assistant: SELECT "Nationality" FROM "Table" WHERE "Years" = '1979';