What are the keywords in the following sentence? books for sale in a street
book, sale, street

What are the keywords in the following sentence? A chocolate, banana and caramel dessert on top of a plate.
caramel, chocolate, dessert

What are the keywords in the following sentence? The toppings on the pizza include meat and cheese.
meat, pizza, topping

What are the keywords in the following sentence? tips on how to save money to buy a home
home, money, save, tip