What are the keywords in the following sentence? tourist attraction was filled with hundreds in dress uniform for a gala dinner with politician .
attraction, dinner, politician

What are the keywords in the following sentence? red shape of heart created out of faces blinding into each other
create, face, shape

What are the keywords in the following sentence? serious lecturer preparing a class in the library at the university
class, lecturer, university

What are the keywords in the following sentence? red cat catching mouse in grass on the meadow
cat, catch, meadow