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

Sentence: 'two children practicing for a ski race without poles'. How many words contain the letter 'e' in the sentence.
3

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

Sentence: 'a small child sits in front of a plate of pizza'. How many words contain the letter 'c' in the sentence.

1