What are the keywords in the following sentence? autumn trees swaying in the wind against a blue sky and clouds .
cloud, sway, wind

What are the keywords in the following sentence? what features gave merchants easy access to many parts of the world .
access, give, world

What are the keywords in the following sentence? airplane taxiing on the runway
airplane, runway, taxi

What are the keywords in the following sentence? bring nature to your home .
bring, home, nature