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

[EX Q]: Sentence: 'a white biplane on grassy area next to buildings'. How many words contain the letter 'g' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a silver television a black couch a table and some ceiling fans'. How many words contain the letter 's' in the sentence.
[EX A]: 4

[EX Q]: Sentence: 'a living room with a couch a table and a tv'. How many words contain the letter 'n' in the sentence.
[EX A]:
2