instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'a group of people skiing down a mountain slope'. How many words contain the letter 'e' in the sentence.
answer:
2


question:
Sentence: 'a tabby cat rests on a suitcase set on the floor in a room'. How many words contain the letter 'q' in the sentence.
answer:
0


question:
Sentence: 'this child is in a playground holding a ball'. How many words contain the letter 'z' in the sentence.
answer:

0