What are the keywords in the following sentence? cluster of grape on the vine
cluster, grape, vine

What are the keywords in the following sentence? a cottage with flowers in full bloom in the garden
cottage, flower, garden

What are the keywords in the following sentence? Three giraffes are walking around their enclosed area at the zoo.
area, enclose, giraffe, zoo

What are the keywords in the following sentence? there once was a little girl who never knew love till a little boy broke her heart .
break, heart, know