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.

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

[EX Q]: Sentence: 'a brown dog greeting a lamb on a green field'. Count the number of vowels in the given sentence.
[EX A]: 14

[EX Q]: Sentence: 'a office caddy holding pens, scissors, and a ruler'. Count the number of vowels in the given sentence.
[EX A]:
14