instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'a grown elephant with two baby elephants standing in tall grasses'. How many words contain the letter 'w' in the sentence.
answer:
3


question:
Sentence: 'a plate with a grilled sanwich next to a bowl of tomato soup'. How many words contain the letter 'a' in the sentence.
answer:
6


question:
Sentence: 'an old van being loaded up with boxes'. How many words contain the letter 'r' in the sentence.
answer:

0