What are the keywords in the following sentence? a city kicking off the day under a blanket of fog .
blanket, day, fog

What are the keywords in the following sentence? Two French school girls position a slide under a microscope.
microscope, position, slide

What are the keywords in the following sentence? roses grow on the exterior of this holiday cottage
cottage, grow, rose

What are the keywords in the following sentence? Several people in a choir are singing and being led by a director.
choir, director, singe