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.

Sentence: 'a boat with a man fishing on it on a lake'. Count the number of consonants in the given sentence.
17

Sentence: 'a person skiing down a steep snowy hill'. Count the number of vowels in the given sentence.
11

Sentence: 'a person sitting on steps with a cell phone'. Count the number of vowels in the given sentence.

12