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

Ex Input:
Sentence: 'the jet is flying through the sky during the day'. How many words contain the letter 'i' in the sentence.

Ex Output:
3


Ex Input:
Sentence: 'group of horses in a field with a pinto in the foreground'. How many words contain the letter 'h' in the sentence.

Ex Output:
3


Ex Input:
Sentence: 'we are looking across a table of food at a young man'. How many words contain the letter 'm' in the sentence.

Ex Output:

1