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

Sentence: 'two elephants are standing by the concrete barrier'. How many words contain the letter 'c' in the sentence.
1

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

Sentence: 'a utility truck with a large yellow barrier in front of it'. How many words contain the letter 'a' in the sentence.

4