In this task, you need to count the number of words in a sentence that contain the given letter

Sentence: 'a person in the air on skis on a mountain slope'. How many words contain the letter 'w' in the sentence.
0

Sentence: 'an lshaped desk covered in various computers and accessories'. How many words contain the letter 'e' in the sentence.
5

Sentence: 'closeup of a fork on a white and black plate'. How many words contain the letter 's' in the sentence.
1