class ZoneUtils {

	private ZoneUtils() {
		throw new AssertionError("Must not instantiate utility class.");
	}

	/**
	 * Approximates Eureka zones from a host name. This method approximates the zone to be
	 * everything after the first "." in the host name.
	 * @param host The host name to extract the host name from
	 * @return The approximate zone
	 */
	public static String extractApproximateZone(String host) {<FILL_FUNCTION_BODY>}

}

		String[] split = StringUtils.split(host, ".");
		return split == null ? host : split[1];
	
<no_super_class>