What are the keywords in the following sentence? fishing boats harbor under a clear blue sky
boat, harbor, sky

What are the keywords in the following sentence? a romantic restaurant in a resort overlooking sea
overlook, resort, sea

What are the keywords in the following sentence? a long queue of tourists awaiting to enter baroque structure
enter, structure, tourist

What are the keywords in the following sentence? the fans are in mourning as they pack into stadium after politician is killed .
fan, pack, politician