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

[EX Q]: Sentence: 'a small terrier stands in the open suitcase ready to go'. How many words contain the letter 'l' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a group of people skiing down a mountain slope'. How many words contain the letter 'e' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a young man dressed in black with a blue tie'. How many words contain the letter 'p' in the sentence.
[EX A]:
0