What are the keywords in the following sentence? Two female skiers helping a little girl learn to ski.
help, learn, ski

What are the keywords in the following sentence? pupils wait to go in their classes on the first day of school .
class, pupil, school

What are the keywords in the following sentence? student studying in a school
school, student, study

What are the keywords in the following sentence? grass moving in the breeze
breeze, grass, move