What are the keywords in the following sentence? profession hauling empty fishing nets at a frozen lake
haul, net, profession

What are the keywords in the following sentence? A black and white horse leaned over eating grass.
eat, horse, lean

What are the keywords in the following sentence? bumblebee on the flower in forest
bumblebee, flower, forest

What are the keywords in the following sentence? the road rises steeply according to the form of the mountain .
mountain, rise, road