What are the keywords in the following sentence? scary forest at the lake in morning for and steam
forest, lake, steam

What are the keywords in the following sentence? christmas tree a gift given every year
christmas, gift, give

What are the keywords in the following sentence? A large tower has a clock on top for the city to see.
city, clock, top

What are the keywords in the following sentence? hiking trail following old road an urban wilderness inside canadian province
province, trail, wilderness