instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'a large clock mounted in the face of a building'. How many words contain the letter 'e' in the sentence.
answer:
4


question:
Sentence: 'a smiling  woman wearing a hat holds up a snowboard'. How many words contain the letter 'b' in the sentence.
answer:
1


question:
Sentence: 'a black and white photo of a very crowded tropical beach'. How many words contain the letter 'p' in the sentence.
answer:

2