Problem: What are the most important words?
vibrant and garish artificial flowers for sale at festival .
Answer: festival, flower, sale

Problem: What are the most important words?
an aircraft flies over airport on its final flight over tourist attraction
Answer: aircraft, flight, fly

Problem: What are the most important words?
add a splash of colour to your home with these colourful folding chairs .
Answer:
add, chair, colour, splash