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: 'convention with people standing at table with refreshments'. Count the number of vowels in the given sentence.

SOLUTION: 17

PROBLEM: Sentence: 'a runner and catcher during a baseball game'. Count the number of vowels in the given sentence.

SOLUTION: 14

PROBLEM: Sentence: 'a man riding a bike while holding a surfboard'. Count the number of consonants in the given sentence.

SOLUTION:
22