What are the keywords in the following sentence? scientists doing some experiments in a laboratory
experiment, laboratory, scientist

What are the keywords in the following sentence? field full of yellow flowers with cattle grazing in the distance
distance, field, graze

What are the keywords in the following sentence? sailing into tourist attraction in early morning as the sun rises above the mountains
morning, mountain, rise, sun

What are the keywords in the following sentence? aerial drone shot rising over a hill to reveal
reveal, rise, shot