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.

Example Input: Sentence: 'cars are waiting for a train to pass in a city intersection'. Count the number of consonants in the given sentence.
Example Output: 28

Example Input: Sentence: 'pedestrians pass by a stop sign, some holding surfboards'. Count the number of vowels in the given sentence.
Example Output: 15

Example Input: Sentence: 'several people at the beach surfing and playing in the water'. Count the number of vowels in the given sentence.
Example Output:
19