A robot collects dishes to be cleaned at Chilli Padi Nonya Cafe in Singapore July 6, 2016. Picture taken July 6, 2016. REUTERS/Edgar Su

A robot collects dishes to be cleaned at Chilli Padi Nonya Cafe in Singapore July 6, 2016. Picture taken July 6, 2016. REUTERS/Edgar Su

A robot collects dishes to be cleaned at Chilli Padi Nonya Cafe in Singapore July 6, 2016. Picture taken July 6, 2016. REUTERS/Edgar Su

August 15, 2016 2:51 AM (UTC+8)