TASK DEFINITION: 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.
PROBLEM: Sentence: 'a train passing through a crossing gate and a kid'. Count the number of consonants in the given sentence.

SOLUTION: 25

PROBLEM: Sentence: 'two people stand with skis on a snowy mountain'. Count the number of consonants in the given sentence.

SOLUTION: 24

PROBLEM: Sentence: 'a laptop that is sitting on a desk'. Count the number of vowels in the given sentence.

SOLUTION:
10