instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'a small terrier stands in the open suitcase ready to go'. How many words contain the letter 'l' in the sentence.
answer:
1


question:
Sentence: 'a black and white photo of a plane sitting on a runway'. How many words contain the letter 'b' in the sentence.
answer:
1


question:
Sentence: 'an old western town miniature in the backyard of a house'. How many words contain the letter 'a' in the sentence.
answer:

4