user: Question: Which Length has a Country of Soviet Union, and a Year larger than 1975?
Columns: ['Year', 'English title', 'Original title', 'Country', 'Length']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1956.0, 'The Killers', 'Убийцы', 'Soviet Union', '19 min.']
SQL:

assistant: SELECT "Length" FROM "Table" WHERE "Country" = 'Soviet Union' AND "Year" > 1975.0;