What are the keywords in the following sentence? mist and frost lingers in fields surrounding the village as the winter sun begins to rise
begin, field, rise, surround, village

What are the keywords in the following sentence? Pieces of luggage on a carousel at the airport.
carousel, luggage, piece

What are the keywords in the following sentence? A little girl holding her skateboard in one arm.
arm, hold, skateboard

What are the keywords in the following sentence? therapy dog visiting a young girl in hospital
dog, hospital, visit