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

Ex Input:
Sentence: 'a child is lighting candles on a cake'. How many words contain the letter 't' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a lit street light next to a bar'. How many words contain the letter 'w' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a stove and a microwave are out of place in a kitchen that is under construction'. How many words contain the letter 'o' in the sentence.

Ex Output:

5