What are the keywords in the following sentence? female couple relax in bed with a laptop
bed, couple, laptop, relax

What are the keywords in the following sentence? tram leaving the stop and heading towards airport
leave, stop, tram

What are the keywords in the following sentence? a rainbow over a wide vista of fields and trees .
field, rainbow, tree

What are the keywords in the following sentence? cottages around the pond in the pretty village of english civil parish
cottage, parish, village