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

[EX Q]: Sentence: 'an untidy room with clothes bottles next to an oven'. How many words contain the letter 'a' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a black and white photo of a plane sitting on a runway'. How many words contain the letter 'b' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'couple of zookeepers walking around amongst the elephants'. How many words contain the letter 'm' in the sentence.
[EX A]:
1