instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'a crowd of people flying kites near the capitol building'. How many words contain the letter 'a' in the sentence.
answer:
3


question:
Sentence: 'antique fire truck restored and displayed at outdoor event'. How many words contain the letter 'x' in the sentence.
answer:
0


question:
Sentence: 'a number of horses tethered to a wooden bench'. How many words contain the letter 'u' in the sentence.
answer:

1