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: 'several horse riders are along the ocean shore'. Count the number of consonants in the given sentence.
22

Sentence: 'a group of people sitting at a table writing on papers'. Count the number of consonants in the given sentence.
26

Sentence: 'there are two men sitting on chairs one of them is on the phone'. Count the number of vowels in the given sentence.

20