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 skier flying down a snow covered hill into a pool'. Count the number of consonants in the given sentence.

Ex Output:
25


Ex Input:
Sentence: 'a plane flies above the tree tops in a greenish sky'. Count the number of vowels in the given sentence.

Ex Output:

17