What are the keywords in the following sentence? a city is geographical feature category in the world
category, city, world

What are the keywords in the following sentence? Some type of fruit is placed on some bananas.
fruit, place, type

What are the keywords in the following sentence? football coach observes his players during training camp .
camp, coach, player

What are the keywords in the following sentence? A giraffe is lying down on the ground.
giraffe, ground, lie