Refer to the input text as context and select the correct relationship between 'Nintendo' and 'Satoru Iwata' from the available options.
Options: platform, chief executive officer, employer, stock exchange

Nintendo President Satoru Iwata dies of tumor Nintendo President Satoru Iwata dies after leading Japan game company through success, woes By Yuri Kageyama, AP Business Writer 4 hours ago  .
chief executive officer