What are the keywords in the following sentence? helicopter taking off on a mission for fire
helicopter, mission, take

What are the keywords in the following sentence? peoples receive treatments at local hospital .
hospital, receive, treatment

What are the keywords in the following sentence? religious leader meets politician and his wife featuring
feature, leader, meet

What are the keywords in the following sentence? a sandwich some bread and dipping sauce and some fries
dip, fry, sandwich, sauce