Problem: What are the most important words?
a depiction of an astronaut floating in outer space while his fellow astronauts work on the space station .
Answer: astronaut, station, work

Problem: What are the most important words?
tourists enjoy the multitude of views over river
Answer: enjoy, river, tourist, view

Problem: What are the most important words?
main bathroom with a shower and bathtub
Answer:
bathroom, bathtub, shower