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

Ex Input:
Sentence: 'a large dog curls up on the pillow on a bunk bed'. How many words contain the letter 't' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a wooden bench sits leveled straight on a slanted ground'. How many words contain the letter 'l' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'the sits in front of a table with a decoration made of apples'. How many words contain the letter 'x' in the sentence.

Ex Output:

0