Problem: What are the most important words?
country are the fourth largest consumers of electricity in the world .
Answer: country, electricity, world

Problem: What are the most important words?
images of all the artwork being uploaded for packing of products at christmas time .
Answer: image, product, upload

Problem: What are the most important words?
ticks filled with blood sit on a green leaf
Answer:
blood, fill, leaf, sit, tick