What are the keywords in the following sentence? also called is a terrestrial planet with a thin atmosphere and surface features similar .
atmosphere, planet, surface

What are the keywords in the following sentence? the boats filling up with tourists
boat, fill, tourist

What are the keywords in the following sentence? A laptop, keyboard, monitor and speakers on a hardwood floor.
floor, keyboard, monitor

What are the keywords in the following sentence? a city of employee works on a manhole
city, employee, work