What are the keywords in the following sentence? the sun rises over horizon
horizon, rise, sun

What are the keywords in the following sentence? A basket of fruit containing oranges and bananas
banana, basket, fruit, orange

What are the keywords in the following sentence? politician rallies the audience at a political rally in an auditorium
audience, politician, rally

What are the keywords in the following sentence? tower crane against blue sky with a few clouds
cloud, crane, sky