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

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

[Q]: Sentence: 'there is a plate if food with broccoli fish and a baked potato'. How many words contain the letter 'k' in the sentence.
[A]: 1

[Q]: Sentence: 'a little girl sitting at a table eating cake'. How many words contain the letter 'z' in the sentence.
[A]:
0