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

[Q]: Sentence: 'antique fire truck restored and displayed at outdoor event'. How many words contain the letter 'x' in the sentence.
[A]: 0


[Q]: Sentence: 'the train needs to be serviced so it is o the truck'. How many words contain the letter 'n' in the sentence.
[A]: 2


[Q]: Sentence: 'a woman with a microphone looking at a cow in a livestock trailer'. How many words contain the letter 'i' in the sentence.
[A]:
6