What are the keywords in the following sentence? time lapse of clouds moving through the sky with leafless trees in the foreground
cloud, foreground, sky, tree

What are the keywords in the following sentence? selection of female sunglasses to different shapes of a face .
face, shape, sunglass

What are the keywords in the following sentence? olympic athlete smiles during the award ceremony after winning the grand
athlete, ceremony, win

What are the keywords in the following sentence? monarch butterfly emerges from the chrysalis
butterfly, chrysalis, emerge