Problem: What are the most important words?
changing a fraction to a mixed number
Answer: change, fraction, number

Problem: What are the most important words?
bee pollinate a yellow flower in the meadow .
Answer: bee, meadow, pollinate

Problem: What are the most important words?
time lapse footage with tilt up motion of the sun streaking through window of ruin
Answer:
footage, motion, streak, sun, window