user: Question: Which Object type has a Constellation of Cancer?
Columns: ['NGC number', 'Object type', 'Constellation', 'Right ascension ( J2000 )', 'Declination ( J2000 )']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [2715.0, 'Spiral galaxy', 'Camelopardalis', '09h08m06.1s', '°05′07″']
SQL:

assistant: SELECT "Object type" FROM "Table" WHERE "Constellation" = 'Cancer';