instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'the two people are in wetsuits in the ocean while one rides a wave'. How many words contain the letter 'd' in the sentence.
answer:
1


question:
Sentence: 'people in different boats rowing around a lake'. How many words contain the letter 'b' in the sentence.
answer:
1


question:
Sentence: 'a red and yellow train parked at a train station'. How many words contain the letter 's' in the sentence.
answer:

1