What are the keywords in the following sentence? crops have made their nest on a tree located in the middle of small farm .
farm, locate, middle

What are the keywords in the following sentence? here is the home just prior to adding the garage .
add, garage, home

What are the keywords in the following sentence? a selection of cheap hats and fake bags for sale
hat, sale, selection

What are the keywords in the following sentence? calculating the number of students per course of study .
course, student, study