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

Ex Input:
Sentence: 'a person standing in the kitchen with an object in hand'. How many words contain the letter 't' in the sentence.

Ex Output:
5


Ex 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.

Ex Output:
3


Ex Input:
Sentence: 'a pole with a display of signs on an intersection'. How many words contain the letter 'c' in the sentence.

Ex Output:

1