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 open box of pizza placed on a kitchen counter'. Count the number of consonants in the given sentence.
22

Sentence: 'the four airplanes are flying through the sky'. Count the number of consonants in the given sentence.
25

Sentence: 'a do not enter sign next to a pedestrian walk sign'. Count the number of consonants in the given sentence.

25