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

Sentence: 'a college student throws a frisbee in a field'. How many words contain the letter 't' in the sentence.
2

Sentence: 'ancient pottery being displayed on an exhibit case'. How many words contain the letter 's' in the sentence.
2

Sentence: 'three catdesigned clocks with all being different colors'. How many words contain the letter 'i' in the sentence.

4