AirAsia plans to restart services to Japan in 2016 after its revamped low-cost carrier (LCC) subsidiary AirAsia Japan returns to the market following the 2013 collapse of a joint venture with All Nippon Airways (ANA).
Refer to the input text as context and select the correct relationship between 'AirAsia' and 'AirAsia Japan' from the available options.
Options: business division, director/manager, currency, chairperson