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

Ex Input:
Sentence: 'a water fountain sitting in the middle of a bathroom'. How many words contain the letter 'h' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a sign that shows you are entering into joshua tree national park'. How many words contain the letter 't' in the sentence.

Ex Output:
5


Ex Input:
Sentence: 'a woman sitting on the beach under an umbrella'. How many words contain the letter 't' in the sentence.

Ex Output:

2