# 8-5. Cities: Write a function called describe_city() that accepts the name of
# a city and its country. The function should print a simple sentence, such as
# Reykjavik is in Iceland. Give the parameter for the country a default value.
# Call your function for three different cities, at least one of which is not in the
# default country.
def describe_city(city, country="America"):
    """Prints a message about a city."""
    print(city + " is in " + country + ".")

describe_city('San Diego')
describe_city('Saint Louis')
describe_city('Reykjavik', 'Iceland')