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

[Q]: Sentence: 'a man srufing the waves on a board in front of 3 tall pillars'. How many words contain the letter 'n' in the sentence.
[A]: 5


[Q]: Sentence: 'a child is lighting candles on a cake'. How many words contain the letter 't' in the sentence.
[A]: 1


[Q]: Sentence: 'a woman in a field of flowers holding an orange umbrella'. How many words contain the letter 'a' in the sentence.
[A]:
6