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

Example Input: Sentence: 'the bowl on the table is full of cut fruit'. How many words contain the letter 'b' in the sentence.
Example Output: 2

Example Input: Sentence: 'horses standing and laying down in the grass on a hill above a lake'. How many words contain the letter 'g' in the sentence.
Example Output: 3

Example Input: Sentence: 'six boats docked mostly blue near road way'. How many words contain the letter 'l' in the sentence.
Example Output:
2