the (cities) type collection instructs the Places service to return results that match locality or administrative_area_level_3.
instructs the Place Autocomplete service to return only business results.
instructs the Place Autocomplete service to return only geocoding results, rather than business results. Generally, you use this request to disambiguate results where the location specified may be indeterminate.
the (regions) type collection instructs the Places service to return any result matching the following types:
localitysublocalitypostal_codecountryadministrative_area_level_1administrative_area_level_2
instructs the Place Autocomplete service to return only geocoding results with a precise address. Generally, you use this request when you know the user will be looking for a fully specified address.