In this task, you need to count the number of words in a sentence that contain the given letter

[EX Q]: Sentence: 'a picture of a plane in the air'. How many words contain the letter 'l' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'there are some warning signs on a public toilet'. How many words contain the letter 'a' in the sentence.
[EX A]: 3

[EX Q]: Sentence: 'two vases with flowers in them on a table'. How many words contain the letter 'l' in the sentence.
[EX A]:
2