What are the keywords in the following sentence? flower on the trunk of a tree
flower, tree, trunk

What are the keywords in the following sentence? sun rising above region as seen from space .
region, space, sun

What are the keywords in the following sentence? organization leader takes in the performance yesterday .
leader, performance, take

What are the keywords in the following sentence? A room with three large windows decorated with antiques
antique, decorate, room