instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'four white and blue street signs on a wooden pole'. How many words contain the letter 'u' in the sentence.
answer:
2


question:
Sentence: 'a laptop computer that is sitting on a desk'. How many words contain the letter 't' in the sentence.
answer:
4


question:
Sentence: 'a person sitting on a box that says buy art today'. How many words contain the letter 'm' in the sentence.
answer:

0