What are the keywords in the following sentence? the royal adds a pop of colour to her wardrobe with this cobalt blue formal dress .
add, colour, pop, wardrobe

What are the keywords in the following sentence? An old train looks happy while coming down the tracks.
come, look, train

What are the keywords in the following sentence? a bee pollinating a pink flower
bee, flower, pollinate

What are the keywords in the following sentence? statue at a park in the city
city, park, statue