What are the keywords in the following sentence? time lapse of alone tree near the beach with the moving clouds
beach, cloud, move, tree

What are the keywords in the following sentence? chemical element is very important to all living organisms .
element, live, organism

What are the keywords in the following sentence? vintage magnifying glass lies on the ancient map .
glass, lie, magnify, map

What are the keywords in the following sentence? tourists reading map in a city
map, read, tourist