What are the keywords in the following sentence? A wintery mountain with someone snowboarding on a slope
mountain, slope, snowboard

What are the keywords in the following sentence? Three people ski down a mountain at a ski resort.
mountain, resort, ski

What are the keywords in the following sentence? image of hands on a computer keyboard
hand, image, keyboard

What are the keywords in the following sentence? a physician checks the ears of a cute little girl while her mother looks on with concerned interest
check, ear, physician