instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'a line of portable toilets stands outdoors under trees'. How many words contain the letter 'l' in the sentence.
answer:
3

question:
Sentence: 'the view of a pier throw rain covered window'. How many words contain the letter 'p' in the sentence.
answer:
1

question:
Sentence: 'a bird is perched on a sill looking in a window'. How many words contain the letter 't' in the sentence.
answer:
0