Problem: What are the most important words?
web with a scary brown and white spider waiting for prey
Answer: spider, wait, web

Problem: What are the most important words?
we thought of orchids as a single flower on a long stem .
Answer: flower, orchid, stem

Problem: What are the most important words?
unloading a catch of shellfish from a small fishing boat in the harbour
Answer:
boat, catch, harbour, unload