Question: MediaCorp Subaru Impreza WRX Challenge has been held since its inauguration at the open air space in front of a shopping and commercial centre that was offically opened in what year?
{'answer': '1993', 'supporting_facts': [['MediaCorp Subaru Impreza WRX Challenge', 0], ['MediaCorp Subaru Impreza WRX Challenge', 1], ['Ngee Ann City', 0], ['Ngee Ann City', 1]]}