Converts a place name into latitude/longitude candidates, so a plain city name can be turned into the coordinates the forecast tool needs.
Use "City,state,country" for precision (state applies to the US), e.g. "London,GB". Returns up to limit matches.
Place name, optionally as "City,state,country" (state is US-only), e.g. "London,GB".
Number of candidate matches (1-5).