In this task, you need to count the number of words in a sentence that contain the given letter
--------
Question: Sentence: 'a man and a woman stand under an umbrella'. How many words contain the letter 's' in the sentence.

Answer: 1


Question: Sentence: 'a woman is hitting a tennis ball with her racket'. How many words contain the letter 'c' in the sentence.

Answer: 1


Question: Sentence: 'a pastry cut up and has a smiley face made of whip cream on it'. How many words contain the letter 'r' in the sentence.

Answer:
2