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 policeman on a horse is by a coke truck'. Count the number of vowels in the given sentence.

Ex Output:
14


Ex Input:
Sentence: 'a train moving on a track during the day'. Count the number of consonants in the given sentence.

Ex Output:
20


Ex Input:
Sentence: 'a duck in the middle of still water'. Count the number of vowels in the given sentence.

Ex Output:

10