def pangrams(s):

 # The English alphabet
alpha = "abcdefghijklmnopqrstvwxyz"

# Convert the input string to lowercase and to a set to remove duplicates
s = set(s.lower())

# Returns 'True' only incase ALL English alphabetical letters included in the string.
if all(char in s for char in alpha):
    return 'pangram'
else:
    return 'not pangram'