What are the keywords in the following sentence? heavy machinery demolished the old building of residential servant quarters of some employees of assembly
building, demolish, quarter

What are the keywords in the following sentence? A white bowl of soup containing broccoli is near some French bread.
bowl, bread, broccoli, soup

What are the keywords in the following sentence? an aircraft takes off for flight during event
aircraft, flight, take

What are the keywords in the following sentence? The girl is spelling out her favorite words with colored letters.
letter, spell, word