What are the keywords in the following sentence? a butterfly resting on some white flowers near the entrance of the garden .
entrance, flower, garden

What are the keywords in the following sentence? A harbor filled with lots of different types and sizes of ships.
fill, harbor, ship

What are the keywords in the following sentence? An elephant sticks it's trunk in the air trying to reach a hanging object.
air, elephant, stick, trunk

What are the keywords in the following sentence? tents pitched in the shadow of the mountains .
pitch, shadow, tent