instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'a skier posing for a photo in front of a slope'. How many words contain the letter 'a' in the sentence.
answer:
3


question:
Sentence: 'a batter sings his bat at a baseball game'. How many words contain the letter 'h' in the sentence.
answer:
1


question:
Sentence: 'an image of a girl with a blue wig and a tootbrush'. How many words contain the letter 'u' in the sentence.
answer:

2