What are the keywords in the following sentence? detail of a giant sunflower in late summer growing on a farm
farm, summer, sunflower

What are the keywords in the following sentence? sun rise horizon with the sea
horizon, rise, sea, sun

What are the keywords in the following sentence? forecast high activity and heavy clouds means that there is a chance of northern lights
activity, chance, cloud, forecast, light

What are the keywords in the following sentence? pine cone and berry wreath .
berry, cone, wreath