What are the keywords in the following sentence? politician opens the first span .
open, politician, span

What are the keywords in the following sentence? she means the world to me but she will never know because i broke her heart .
break, heart, world

What are the keywords in the following sentence? building a raised deck with roof
build, deck, raise

What are the keywords in the following sentence? pedestrians walk toward roman structure
pedestrian, structure, walk