What are the keywords in the following sentence? smoke coming out of a chimney
chimney, come, smoke

What are the keywords in the following sentence? custom floating vanity and sink for the contemporary master bathroom
bathroom, float, sink, vanity

What are the keywords in the following sentence? image of the opened letters and papers
image, letter, paper

What are the keywords in the following sentence? mountain goat leaping from rock to another against blue sky
goat, leap, rock