Problem: What are the most important words?
a female monarch butterfly alighted upon a flower in a garden filled with biological genus and major flowers
Answer: butterfly, fill, garden

Problem: What are the most important words?
A woman is shown operating a large piece of machinery and another woman talks about the equipment.
Answer: machinery, piece, talk

Problem: What are the most important words?
Along the corridor, someone stops in front of a guilt - framed portrait.
Answer:
front, portrait, stop