What are the keywords in the following sentence? a meal is served to residents of a shelter for homeless women and children
meal, resident, serve

What are the keywords in the following sentence? A little girl is tickling a baby boy lying on a rug.
lie, rug, tickle

What are the keywords in the following sentence? the boat with tourists passing the statue of liberty
boat, pass, tourist

What are the keywords in the following sentence? A sink in a kitchen under a microwave oven.
kitchen, microwave, oven, sink