Problem: What are the most important words?
motion time lapse of heavy morning traffic moving into filming location as seen from overpass .
Answer: filming, location, move, traffic

Problem: What are the most important words?
Construction workers balancing themselves on a beam are at their place of employment
Answer: balance, beam, worker

Problem: What are the most important words?
good example of how the rocks weather at different rates depending on their formation .
Answer:
example, formation, rock