What are the keywords in the following sentence? cargo washed up from a wrecked container .
cargo, container, wash

What are the keywords in the following sentence? a yacht and its reflection in harbour
harbour, reflection, yacht

What are the keywords in the following sentence? By the dim light above his seat, he peruses the documents written in russian.
document, light, peruse, seat, write

What are the keywords in the following sentence? An old building has a tall tower with clock rising high into the sky.
clock, rise, tower