What are the keywords in the following sentence? soldiers participate in a ceremony hosted by armed force which was intended to officially
ceremony, participate, soldier

What are the keywords in the following sentence? bumble bees in the meadow of flowers
bee, flower, meadow

What are the keywords in the following sentence? these terraces were carved into the mountainside and used for growing crops .
crop, grow, terrace

What are the keywords in the following sentence? the historian is digging with his friend for study.
dig, friend, historian, study