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

Sentence: 'adults with helmets sitting on tricycles made for children'. How many words contain the letter 'r' in the sentence.
3

Sentence: 'a man holding a racquet hits a tennis ball'. How many words contain the letter 'v' in the sentence.
0

Sentence: 'child eating a round doughnut with brown sugar'. How many words contain the letter 'k' in the sentence.

0