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Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
The drone allows for a full aerial survey of the area, saving hours of work for rescue teams, who typically will search an area by arranging themselves and covering ground in a grid-pattern.
Source: https://www.cbc.ca/news/canada/sudbury/drones-rescue-moose-river-1.6831182?cmp=rss