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.

Example Input: Sentence: 'a television with a baby's picture sits on a partition in an office building'. Count the number of consonants in the given sentence.
Example Output: 35

Example Input: Sentence: 'two women are talking while one is eating'. Count the number of vowels in the given sentence.
Example Output: 15

Example Input: Sentence: 'two modern style sinks in front of a mirror in a public bathroom'. Count the number of vowels in the given sentence.
Example Output:
18