What are the keywords in the following sentence? mango tree growing from wrecked barge on the side
barge, grow, tree, wreck

What are the keywords in the following sentence? athlete will miss the first rounds of campaign
athlete, miss, round

What are the keywords in the following sentence? People standing next to luggage carts loading luggage on an airplane.
airplane, cart, load, luggage

What are the keywords in the following sentence? couple standing near the campfire in forest
campfire, couple, forest