What are the keywords in the following sentence? a brown bear walking around his habitat at the zoo
bear, habitat, zoo

What are the keywords in the following sentence? gardens like this one devoted to research and breeding trials cover several acres of the property .
acre, garden, property

What are the keywords in the following sentence? places to visit if you want to have a meal with tribes
place, visit, want

What are the keywords in the following sentence? city market has more than a dozen varieties of apples
apple, market, variety