checkforwords

def checkio(words):
    counter = 0
    for part in words.split():
        if part.isalpha():
            counter = counter +1            
        elif part.isdigit():
            counter = 0           
        if counter == 3:
            return True
    return False

#These "asserts" using only for self-checking and not necessary for auto-testing
if __name__ == '__main__':
    assert checkio("Hello World hello") == True, "Hello"
    assert checkio("He is 123 man") == False, "123 man"
    assert checkio("1 2 3 4") == False, "Digits"
    assert checkio("bla bla bla bla") == True, "Bla Bla"
    assert checkio("Hi") == False, "Hi"