What are the keywords in the following sentence? cattle in the shade of a tree on a ranch
cattle, ranch, shade, tree

What are the keywords in the following sentence? home for sale with a pool
home, pool, sale

What are the keywords in the following sentence? video of a male hand operating on a computer mouse
hand, mouse, operate

What are the keywords in the following sentence? shot of a young couple in love embracing each other in a wide open green field during the day
couple, day, embrace, love