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: 'the buses are waiting in line for pickup'. Count the number of consonants in the given sentence.

Ex Output:
19


Ex Input:
Sentence: 'two traffic signs are pictured in front of a sky background'. Count the number of vowels in the given sentence.

Ex Output:
16


Ex Input:
Sentence: 'a man talking on a phone while holding his hand on his side'. Count the number of vowels in the given sentence.

Ex Output:

18