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

[Q]: Sentence: 'a man in a restaurant makes the v sign with both hands'. How many words contain the letter 'n' in the sentence.
[A]: 5


[Q]: Sentence: 'a college student throws a frisbee in a field'. How many words contain the letter 't' in the sentence.
[A]: 2


[Q]: Sentence: 'a room full of students intently watch a presentation'. How many words contain the letter 'b' in the sentence.
[A]:
0