instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'many people are playing a sports video game while standing up'. How many words contain the letter 'l' in the sentence.
answer:
3


question:
Sentence: 'group of horses in a field with a pinto in the foreground'. How many words contain the letter 'h' in the sentence.
answer:
3


question:
Sentence: 'man walking on a sidewalk that is sloping downhill approaching the corner'. How many words contain the letter 'd' in the sentence.
answer:

2