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 clock stands on the curb of a busy street'. Count the number of vowels in the given sentence.

SOLUTION: 11

PROBLEM: Sentence: 'there is a cow that is drinking water from a hose'. Count the number of consonants in the given sentence.

SOLUTION: 24

PROBLEM: Sentence: 'a salad is grilled and on a plate at a restaurant'. Count the number of vowels in the given sentence.

SOLUTION:
17