What are the keywords in the following sentence? A train moving on the track next to carts that have fallen off.
cart, move, track, train

What are the keywords in the following sentence? security guards protecting military commander check out a crowd before his arrival at the annual
arrival, check, commander

What are the keywords in the following sentence? a stained glass window inside the parish church located
locate, stain, window

What are the keywords in the following sentence? heavy smoke was still coming from the home about a hour after the fire started .
come, fire, home, smoke