What are the keywords in the following sentence? helicopter taking off after delivering a patient to hospital
deliver, hospital, take

What are the keywords in the following sentence? A clock in a recessed section of a brick building.
building, clock, section

What are the keywords in the following sentence? people gather to celebrate the end
celebrate, end, gather

What are the keywords in the following sentence? A small bathroom and toilet and a shelf.
bathroom, shelf, toilet