Problem: What are the most important words?
Several people shovel dirt on the grave of a young lady as a man reads from the Bible.
Answer: dirt, grave, read, shovel

Problem: What are the most important words?
A bunch of elephants grazing in an expansive plain.
Answer: elephant, graze, plain

Problem: What are the most important words?
Bubbling hot cheese is melted on top of a pizza.
Answer:
cheese, melt, pizza