List all the devices' brands and models of events on 5/7/2016 at 6:03:22 AM.
devices' brands refers to phone_brand; models refers to device_model; on 5/7/2016 at 6:03:22 AM refers to timestamp = '2016-05-07 06:03:22';
SELECT T1.phone_brand, T1.device_model FROM phone_brand_device_model2 AS T1 INNER JOIN events_relevant AS T2 ON T1.device_id = T2.device_id WHERE T2.timestamp = '2016-05-07 06:03:22'