In this task, you need to count the number of vowels (letters 'a', 'e', 'i', 'o', 'u') / consonants (all letters other than vowels) in the given sentence.

Ex Input:
Sentence: 'a black and white picture of a man standing on his skate board'. Count the number of consonants in the given sentence.

Ex Output:
31


Ex Input:
Sentence: 'a fire hydrant and bicycle are covered with snow as they stand next to each other near a street corner'. Count the number of consonants in the given sentence.

Ex Output:
53


Ex Input:
Sentence: 'a herd of sheep are walking up a muddy hill next to a parked minivan'. Count the number of vowels in the given sentence.

Ex Output:

21