What are the keywords in the following sentence? another idea of how to raise the table to turn into an island .
idea, table, turn

What are the keywords in the following sentence? armed force wait inside a helicopter before the start of a mission in province .
helicopter, mission, wait

What are the keywords in the following sentence? tree on hill in the fog
fog, hill, tree

What are the keywords in the following sentence? mirrors at each side of bed
bed, mirror, side