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 man sitting at a table and cutting into a pizza'. Count the number of consonants in the given sentence.

SOLUTION: 23

PROBLEM: Sentence: 'several softball players pause while onlookers chat together in a park'. Count the number of consonants in the given sentence.

SOLUTION: 37

PROBLEM: Sentence: 'three black cows standing next to each other on a field'. Count the number of vowels in the given sentence.

SOLUTION:
16