What are the keywords in the following sentence? hikers on the meadow in the mountain .
hiker, meadow, mountain

What are the keywords in the following sentence? aircraft arrives flying over the unfinished golden gate bridge in the first trans commercial flight .
aircraft, flight, fly

What are the keywords in the following sentence? vertical panning in slow motion of a waterfall in rocky mountains
motion, mountain, waterfall

What are the keywords in the following sentence? angle view of cattle grazing in a field
cattle, field, graze, view