user: Question: What is the end (UTC) if the duration is 6 hours, 55 minutes?
Columns: ['#', 'Spacecraft', 'Spacewalkers', 'Start ( UTC )', 'End (UTC)', 'Duration']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['261.', 'Expedition 14 EVA 2', 'Michael Lopez-Alegria Sunita Williams', 'January 31, 2007 15:14', 'January 31, 2007 23:09', '7 h, 55 min']
SQL:

assistant: SELECT "End (UTC)" FROM "Table" WHERE "Duration" = '6 hours, 55 minutes';