Problem: What are the most important words?
a long exposure of an abandoned jetty on the shores
Answer: abandon, jetty, shore

Problem: What are the most important words?
bottles are seen on sale at a butcher shop
Answer: bottle, sale, shop

Problem: What are the most important words?
port of shipyard with heavy lifting cranes and a ship waiting to off load its cargo
Answer:
cargo, crane, load, port