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

Ex Input:
Sentence: 'a black and white photo of a large clock on a building'. How many words contain the letter 't' in the sentence.

Ex Output:
2


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 young skateboarder is performing tricks in a driveway'. How many words contain the letter 'd' in the sentence.

Ex Output:

2