What are the keywords in the following sentence? flowers hanging in cluster in the desert
cluster, flower, hang

What are the keywords in the following sentence? Man balancing tray of food on his head.
balance, head, tray

What are the keywords in the following sentence? a trio of abandoned farm buildings are invaded by grass in the prairies
abandon, building, prairie

What are the keywords in the following sentence? this enclosed garden is part of the private grounds
enclose, garden, part