What are the keywords in the following sentence? a shepherd with his sheepdog herding a flock of sheep through gate
flock, sheep, sheepdog

What are the keywords in the following sentence? police officers stand on duty outside stadium after the football match was abandoned sunday .
match, officer, stadium, stand

What are the keywords in the following sentence? add contemporary style to your bathroom with the wall hung toilet
add, hang, style, toilet, wall

What are the keywords in the following sentence? a painting of clouds in the northern sky with field and trees
field, painting, sky