In a code language, 'Online Games May' is coded as 'fg, rt, nm' and 'May Threat Trigger' is coded as 'rt, sd, az' and 'Games Trigger Mental' is coded as 'sd, fg, qw'. How is 'Online' is coded as in that language?

I. Online Games May' is coded as 'fg, rt, nm' II. 'May Threat Trigger' is coded as 'rt, sd, az' III. 'Games Trigger Mental' is coded as 'sd, fg, qw' From I and II, we get 'May' is coded as 'rt'. From I and III, we get 'Games' is coded as 'fg'. From II and III, we get 'Trigger' is coded as 'sd'. From I alone, we get 'Online' is coded as 'nm'. From II alone, we get 'Threat' is coded as 'az'. From III alone, we get 'Mental' is coded as 'qw'. So, we get 'Online' is coded as 'nm'