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

Ex Input:
Sentence: 'there is a small bowl of soup and vegetables'. How many words contain the letter 'g' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'five sheep out in an open field eating straw'. How many words contain the letter 'd' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a man with an umbrella walking down a road'. How many words contain the letter 'b' in the sentence.

Ex Output:

1