Problem: What are the most important words?
Lots of bikers talk among either other near motorcycles.
Answer: biker, lot, motorcycle

Problem: What are the most important words?
turquoise water of the sea with coral reef below surface and a pristine tropical island at the horizon
Answer: reef, sea, water

Problem: What are the most important words?
small candle burning in a temple to worship
Answer:
burn, candle, temple