What are the keywords in the following sentence? A train is parked on abandoned track in the grass.
abandon, grass, track, train

What are the keywords in the following sentence? early morning just after sunrise at a new housing development and construction site
morning, site, sunrise

What are the keywords in the following sentence? a miniature garden hidden near a building in the district
building, garden, hide

What are the keywords in the following sentence? volunteers paint a mural this week as part of the program .
mural, paint, program