What are the keywords in the following sentence? windows in a block of flats with a cloudy sky
block, flat, sky

What are the keywords in the following sentence? we live in a world today where people often make things far more complicated than they need be .
need, thing, world

What are the keywords in the following sentence? a panorama of village and sea on west coast
coast, sea, village

What are the keywords in the following sentence? a large rock in the mountains between the gorge from which a tree grows
gorge, grow, tree