What are the keywords in the following sentence? Two zebras side by side eating grass inside a fence.
eat, fence, grass, side

What are the keywords in the following sentence? A bee keeper checks his hives to see how the honey comb is coming along.
comb, hive, keeper

What are the keywords in the following sentence? An orange flower with a broken stem in water.
flower, stem, water

What are the keywords in the following sentence? shoppers stroll past the shop in the block .
shop, shopper, stroll