What are the keywords in the following sentence? Sheep and lamb under a tree in a pasture.
pasture, sheep, tree

What are the keywords in the following sentence? a soldier is seen as she returns to her base after an operation to deliver supplies at their base
base, deliver, operation, return, soldier

What are the keywords in the following sentence? A coal train on tracks coming out of a tunnel.
come, track, train, tunnel

What are the keywords in the following sentence? structure and church in the centre of town
centre, church, structure