user: Question: What is the Days, hours, minutes for the GW line from Liverpool?
Columns: ['Ship', 'Year', 'Dates', 'Line', 'From', 'Distance', 'Days, hours, minutes', 'Speed']
Types: ['text', 'real', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Columbia', 1830.0, '1 – 17 April', 'Black Ball Line', 'Portsmouth', 'nautical miles (km)', '15 d, 23 h', 'knots (km/h)']
SQL:

assistant: SELECT "Days, hours, minutes" FROM "Table" WHERE "Line" = 'GW' AND "From" = 'Liverpool';