instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'some kids are all taking a photograph together'. How many words contain the letter 'e' in the sentence.
answer:
3


question:
Sentence: 'martha stewart holding a fluffy siamese cat on her arms'. How many words contain the letter 'a' in the sentence.
answer:
6


question:
Sentence: 'a young man tries to ride up a wave'. How many words contain the letter 'b' in the sentence.
answer:

0