What are the keywords in the following sentence? people and tourists walking in the waterfront at town
tourist, walk, waterfront

What are the keywords in the following sentence? the clock tower and outer wall of the historic castle
castle, tower, wall

What are the keywords in the following sentence? smiling female student taking notes in the classroom
classroom, note, student

What are the keywords in the following sentence? charming dots and stripes pattern this ceramic mug painted with a single initial monogram .
mug, paint, pattern