English speech commands:

exit button: 				exit,exit button
forward button: 			forward,forward arrow,forward button,next,next button
reverse button: 			reverse,reverse arrow,reverse button,back,back button

multiple choice question exit button: 	OK, OK button
menu display button: 					menu,return,return to menu,return to menu button,return button,menu button,menu display button,review,review menu,review menu button

high resolution button:		hires,high resolution,high resolution button,high button
low resolution button: 		lowres,low resolution,low resolution button,low button

accessibility button: 		accessibility,accessibility button
closed caption button: 		caption,closed caption,closed caption button,subtitles,subtitles button
pin navigation button: 		pin,pin navigation,pin navigation button,pin button
unpin navigation button: 	unpin,unpin navigation,unpin navigation button,unpin button
fullscreen button: 			display,display size,display size button,size button,display button,screen size,screen size button
information button: 		information,information button,about,about button

video play button: 			play,video play,video play button,play button
video rewind button: 		rewind,video rewind,video rewind button,rewind button
video pause button: 		pause,video pause,video pause button,pause button
video replay button: 		replay,video replay,video replay button,replay button

audio play button: 			play,audio play,audio play button,play button
audio replay button: 		replay,audio replay,audio replay button,replay button
audio pause button: 		pause,audio pause,audio pause button,pause button

click to start course button: start,start course,start course button