What are the keywords in the following sentence? a soldier reads a letter from home .
letter, read, soldier

What are the keywords in the following sentence? young couple relaxing evening around the campfire and tents .
couple, relax, tent

What are the keywords in the following sentence? surgeon and colleague interacting with each other in medical room at the hospital
colleague, hospital, surgeon

What are the keywords in the following sentence? horses grazing grass on the slope of a hill
graze, horse, slope