# P. Conrad for CS5nm, 10/29/08
#
#  Define some tuples representing people
#  Name, Citizenship, Age

p1 = ("Fred Smith", "USA", 15)
p2 = ("Chen Ji", "USA", 42)
p3 = ("Silvio Berlesconi", "Italy", 72)
p4 = ("Bill Gates", "USA", 53)

def isUSCitizen(person):
    (name, citizenship, age) = person
    return (citizenship == "USA")

def isOldEnoughToVote(person):
    (name, citizenship, age) = person
    return (age >= 18)
    

def isEligibleVoter(person):
    (name, citizenship, age) = person
    return  (age >= 18) and (citizenship == "USA")

def isEligibleVoterV2(person):
    return  isOldEnoughToVote(person) and isUSCitizen(person)

def isUSCitizenV4(person):
    if ( person[1] == "USA"):
        return True
    else:
        return False

def isUSCitizenVersion2(citizenship):
    if (citizenship == "USA"):
        return True
    else:
        return False


def isUSCitizenVersion3((name,citizenship,age)):
    if (citizenship == "USA"):
        return True
    else:
        return False


###  Here are some print statements we can use for debugging
###  Insert and comment out as needed
##    print "name is " + name
##    print "he/she is a citizen of " + citizenship
##    print "that person is " + str(age) + " years old"